You can have perfect grammar and a huge vocabulary, but if you don't understand idioms and colloquial expressions, you'll miss half of what native speakers say - and you'll sound formal and unnatural when you speak.
💭 What Makes Someone Sound "Native-Like"?
It's not about accent or perfect grammar. It's about using the chunks of language that natives use naturally:
Idioms: Fixed expressions with non-literal meanings ("it's raining cats and dogs")
Fixed phrases: Common combinations ("make a decision," not "do a decision")
⚠️ The Challenge
Idioms don't translate: If you try to translate "It's raining cats and dogs" word-by-word into another language, it makes no sense!
They're not logical: Why does "break a leg" mean "good luck"? There's no logical reason - you just have to learn it.
Context matters: The same idiom can mean different things in different situations.
📊 Levels of Formality
❌ Very Formal (Don't use in casual conversation)
"I must depart." / "I shall endeavor to complete this task."
⚠️ Formal (Academic writing, business)
"I need to leave." / "I will try to finish this."
✅ Neutral (Everyday speaking)
"I've gotta go." / "I'll give it a shot."
💬 Colloquial (Friends, casual contexts)
"I'm outta here." / "I'll take a crack at it."
🎤 Opening Discussion (4 minutes)
What idioms exist in your native language that don't translate to English?
Have you ever been confused by an English idiom or colloquialism?
Do you ever feel like you sound "too formal" or "like a textbook" when speaking English?
Which do you find harder - understanding idioms or using them naturally?
⏱️ Discussion Timer
4:00
💡 Essential Idioms by Category
Here are the most common and useful idioms in English, organized by theme. Learn these, and you'll understand 80% of the idioms you encounter.
💰 Money & Success
Cost an arm and a leg
Meaning: Be very expensive
Example: "That new iPhone costs an arm and a leg! I can't afford it."
Break the bank
Meaning: Cost too much money (use up all your savings)
Example: "We want to go on vacation but don't want to break the bank."
Hit the jackpot
Meaning: Have great success or good luck
Example: "When I found this apartment, I really hit the jackpot!"
Back to square one
Meaning: Start over from the beginning
Example: "The project failed, so we're back to square one."
Use them!
1. That designer bag — it was over £500!
cost an arm and a leg
2. Our holiday was expensive, but we wanted to have fun without .
breaking the bank
3. When I got the job offer, I felt like I had !
hit the jackpot
4. The first design didn't work, so we were .
back to square one
Tell a story
Describe a time you hit the jackpot or went back to square one. What happened?
⏰ Time & Effort
In the nick of time
Meaning: Just before it's too late
Example: "We arrived at the airport in the nick of time - the gate was about to close!"
Beat around the bush
Meaning: Avoid saying something directly
Example: "Stop beating around the bush and just tell me what happened!"
Burn the midnight oil
Meaning: Work late into the night
Example: "I've been burning the midnight oil to finish this essay."
A piece of cake
Meaning: Very easy
Example: "The exam was a piece of cake - I finished in 20 minutes!"
Use them!
1. Our train was about to leave, but we made it .
in the nick of time
2. I wish he would just and tell me the truth!
stop beating around the bush
3. I've been all week to finish this project.
burning the midnight oil
4. This math homework is - I finished in 10 minutes!
a piece of cake
Describe a stressful week
Tell me about a time you had to burn the midnight oil, or when something came in the nick of time.
😤 Emotions & Reactions
Blow off steam
Meaning: Release anger or stress
Example: "After that stressful meeting, I need to blow off some steam at the gym."
Drive someone up the wall
Meaning: Annoy someone very much
Example: "My roommate's constant singing is driving me up the wall!"
Over the moon
Meaning: Extremely happy
Example: "She was over the moon when she got accepted to Harvard."
On edge
Meaning: Nervous, anxious
Example: "I've been on edge all day waiting for my test results."
Use them!
1. After arguing with my friend, I went for a run to .
blow off steam
2. His constant interruptions are !
driving me up the wall
3. When I heard I won the scholarship, I was !
over the moon
4. I've been all day waiting to hear if I got the job.
on edge
Tell a story about emotions
Describe a time you were over the moon, or when something was driving you up the wall.
🤝 Relationships & People
Get along like a house on fire
Meaning: Have an excellent relationship
Example: "My new roommate and I get along like a house on fire!"
See eye to eye
Meaning: Agree completely
Example: "We don't always see eye to eye, but we respect each other."
Break the ice
Meaning: Make people feel comfortable in social situations
Example: "I told a joke to break the ice at the party."
Spill the beans
Meaning: Reveal a secret
Example: "Come on, spill the beans! What's the surprise?"
Use them!
1. My best friend and I - we're always laughing together!
get along like a house on fire
2. We don't always on politics, but we still respect each other.
see eye to eye
3. I told a funny story to at the party.
break the ice
4. She promised not to about the surprise party.
spill the beans
Talk about a friendship
Describe a friend you get along well with. What do you do together? Do you always see eye to eye?
🎤 Practice These Idioms (6 minutes)
Create natural sentences using these idioms:
Tell a story using at least 3 money/success idioms
Describe a stressful situation using emotion idioms
Talk about a friendship or relationship using people idioms
Describe your week using time/effort idioms
⏱️ Practice Timer
6:00
🚀 Essential Phrasal Verbs
Phrasal verbs are everywhere in spoken English. Master these, and you'll sound much more natural!
⚠️ Why Phrasal Verbs Are Tricky
The same verb with different prepositions = completely different meanings:
Look up = search for information
Look down on = consider inferior
Look after = take care of
Look into = investigate
Look forward to = anticipate with pleasure
💬 Communication Phrasal Verbs
Bring up (something)
Meaning: Mention or introduce a topic
Example: "I don't want to bring up the argument again."
Get across (something)
Meaning: Make something understood
Example: "I'm trying to get my point across, but he won't listen."
Talk (someone) into (something)
Meaning: Persuade someone
Example: "She talked me into going to the party even though I was tired."
Speak up
Meaning: Speak louder / express your opinion
Example: "If something bothers you, you need to speak up!"
Transform these!
Formal: "I don't want to mention the argument again."
Natural:
"I don't want to bring up the argument again."
🎯 Achievement & Problem-Solving
Figure out (something)
Meaning: Find a solution, understand
Example: "I can't figure out how to use this app!"
Work out
Meaning: Succeed, be resolved
Example: "Don't worry - everything will work out in the end."
Give up (on something/someone)
Meaning: Stop trying, abandon
Example: "Don't give up! You're almost there!"
Pull off (something)
Meaning: Succeed in doing something difficult
Example: "I can't believe we pulled off that presentation!"
Transform these!
Formal: "I need to understand this problem and discover a solution."
Natural:
"I need to figure out this problem and work out a solution."
🚀 Starting & Continuing
Set up (something)
Meaning: Establish, arrange, organize
Example: "We need to set up a meeting for next week."
Take up (something)
Meaning: Start a hobby or activity
Example: "I've taken up yoga recently."
Carry on (with something)
Meaning: Continue
Example: "Sorry for the interruption - please carry on."
Keep up (with something/someone)
Meaning: Maintain the same pace or level
Example: "It's hard to keep up with all the new technology!"
Transform these!
Formal: "I started tennis last month and it's difficult to maintain the same pace as the experienced players."
Natural:
"I've taken up tennis and it's hard to keep up with the experienced players."
❌ Ending & Stopping
Call off (something)
Meaning: Cancel
Example: "They called off the wedding at the last minute."
Put off (something)
Meaning: Postpone, delay
Example: "I keep putting off studying for my exam."
Turn down (something/someone)
Meaning: Reject, refuse
Example: "She turned down the job offer because the salary was too low."
Break off (something)
Meaning: End (usually a relationship or negotiation)
Example: "They broke off their engagement."
Transform these!
Formal: "The company decided to cancel the event and postpone the negotiations until next month."
Natural:
"The company called off the event and put off the negotiations until next month."
Tell a story using phrasal verbs
Describe a time you had to figure something out, took up a hobby, or gave up on something. Try to use 3-4 phrasal verbs naturally.
🎤 Speaking Practice (8 minutes)
Speak these stories aloud:
Tell about a time you had to figure something out
Describe a hobby or activity you took up
Talk about a time when you had to give up on something
Share a story about a plan that worked out (or didn't!)
⏱️ Practice Timer
8:00
😎 Colloquial English - How People REALLY Talk
Textbooks teach formal English. But real people use contractions, shortened forms, and informal expressions. Here's how English actually sounds in casual conversation.
⚠️ Important Note About Colloquialisms
Understand them: You need to recognize these when people use them
Use them carefully: Only in casual contexts with friends - NOT in formal writing or professional situations
They're regional: Some expressions are more common in American vs British vs Australian English
🗣️ Common Contractions & Reductions
Gonna / Wanna / Gotta
Formal: "I am going to study tonight."
Colloquial: "I'm gonna study tonight."
More examples:
"I wanna go home." (want to)
"I gotta finish this." (have got to / need to)
"I shoulda studied more." (should have)
Kinda / Sorta
Formal: "It is kind of expensive."
Colloquial: "It's kinda expensive."
Usage: To soften statements or show uncertainty
"I'm kinda tired." (a bit tired)
"That's sorta what I meant." (sort of / kind of)
Dunno / Lemme / Gimme
Formal: "I do not know." / "Let me..." / "Give me..."
Colloquial: "I dunno." / "Lemme..." / "Gimme..."
Examples:
"Dunno what to do." (I don't know)
"Lemme think about it." (Let me think)
"Gimme a break!" (Give me a break!)
Say it casually!
Rewrite these formally as casual colloquial versions:
"I do not know what I want to do this weekend."
💬 Informal Intensifiers
Super / Pretty / Way / Totally
In formal English: "very" / "extremely" / "completely"
In casual speech:
"That's super interesting!"
"I'm pretty tired."
"That's way too expensive!"
"I totally agree!"
Tons of / Loads of / A bunch of
Formal: "many" / "a lot of"
Colloquial:
"I have tons of homework."
"There are loads of people here!"
"I made a bunch of mistakes."
Say it casually!
Rewrite these using casual intensifiers:
"I am very tired and I have a lot of homework to do."
🎭 Casual Responses & Reactions
Agreement
"For sure!" (Definitely)
"You bet!" (Yes, of course)
"No doubt!" (I completely agree)
"Exactly!" (That's right)
"Fair enough." (I accept that)
Surprise / Disbelief
"No way!" (I can't believe it!)
"Are you kidding?" (Is that true?)
"Get out!" (informal: Really?!)
"You're joking!" (That can't be true)
Indifference / "I don't care"
"Whatever." (I don't care / it doesn't matter)
"Meh." (expressing indifference)
"I'm good either way." (Both options are fine)
"It is what it is." (We can't change it)
React casually!
How would you respond casually to these? (Use expressions from above)
1. "I got accepted to my dream university!"
2. "Do you want pizza or pasta for dinner?"
3. "I failed my driving test again."
🔥 Slang Expressions (Use with caution!)
Positive
"That's awesome!" (really good)
"This is sick!" (amazing - youth slang)
"You nailed it!" (did it perfectly)
"I'm down for that." (I want to do it)
"Let's hang out." (spend time together casually)
Negative
"That sucks." (that's unfortunate/bad)
"What a bummer." (disappointing)
"I messed up." (I made a mistake)
"I'm beat." (exhausted)
"That's sketchy." (suspicious, unreliable)
Use slang expressions
Write a response using slang for each situation:
1. Your presentation went perfectly!
2. You arrived very late to the party.
Speak casually!
Describe your weekend plans using casual colloquial English:
🎤 Speaking Practice (6 minutes)
Speak these aloud using colloquial English:
Describe your plans for the weekend using casual language
Tell a story about something that went wrong using informal expressions
Describe a friend using colloquial descriptors and slang
Give your casual reactions to good and bad news
⏱️ Practice Timer
6:00
🎮 Interactive Practice Activities
Game 1: Idiom Story Challenge (5 minutes)
Instructions: Write or tell a 2-minute story that includes AT LEAST 5 idioms from this lesson. The story can be real or fictional.
Challenge level: Make the idioms fit naturally - don't force them!
Story starter ideas:
Your first day at a new job
A disastrous vacation
Preparing for an important exam
A misunderstanding with a friend
⏱️ Story Timer
5:00
Game 2: Phrasal Verb Substitution (4 minutes)
Challenge: Take a formal description and make it sound natural using phrasal verbs.
Example:
Formal: "I need to investigate this problem and discover a solution."
Natural: "I need to look into this problem and figure out a solution."
Practice sentences (transform these!):
"I decided to cancel the meeting and postpone it until next week."
"She refused the job offer because she wanted to continue her current position."
"We need to establish a new system and organize everything properly."
"He mentioned an interesting topic during our conversation."
Game 3: Formal vs Casual Role-Play (6 minutes)
Exercise: Practice the same conversation twice - once formally, once casually.
Scenario: Explaining why you can't attend an event
Version 1 (Formal - to your boss):
"I apologize, but I will be unable to attend the meeting tomorrow due to a prior commitment..."
Version 2 (Casual - to your friend):
"Hey, I'm really sorry but I can't make it tomorrow. Something came up and I gotta..."
Other scenarios to try:
Asking someone to help you
Explaining that you made a mistake
Turning down an invitation
Sharing good news
Write your formal and casual versions:
Formal version:
Casual version:
⏱️ Practice Timer
6:00
💬 Using Idiomatic Language Naturally
Learning idioms is one thing - using them naturally is another. Here's how to sound authentic, not awkward.
✅ DO's - How to Sound Natural
Learn idioms in context: Not from lists, but from hearing them used naturally
Start with common ones: Master 20 very common idioms before learning 100 obscure ones
Use them sparingly: 1-2 idioms in a conversation, not 10 in every sentence
Match the formality: Use casual idioms with friends, not in job interviews
Listen for them: Notice when native speakers use them in movies, podcasts, conversations
Practice pronunciation: "Gonna" only sounds natural if pronounced correctly
❌ DON'T's - Common Mistakes
Don't overuse idioms: Using too many makes you sound unnatural and try-hard
Don't mix formal and informal: "I shall endeavor to chill out" sounds weird
Don't translate literally: Your language's idioms won't work in English
Don't use old-fashioned idioms: "As keen as mustard" - no one says this anymore!
Don't force them: Only use an idiom if it fits naturally
Don't use idioms you don't understand: You might use them incorrectly
Respond naturally to these situations
Use idioms, phrasal verbs, or colloquialisms naturally in your response:
1. Your friend has been stressed at work. What would you suggest?
2. You're explaining how you solved a difficult problem at work.
3. Your friend tells you they're thinking about quitting their hobby.
4. Describe a recent success or good news using appropriate idioms/phrasal verbs.
🎯 Building Your Idiom Repertoire
Stage 1: Recognition (Passive)
Hear and understand idioms when others use them
How: Watch TV shows, listen to podcasts, note down idioms you hear
Stage 2: Practice (Controlled)
Use idioms in low-pressure situations like practice conversations
How: Language exchange, speaking with teacher, practicing alone
Stage 3: Production (Natural)
Idioms come to mind automatically in real conversations
How: Repeated exposure and practice until they become automatic
💡 Resources for Learning Idioms
TV Shows: Friends, The Office, Modern Family (conversational English)
Podcasts: Listen to native speakers in casual conversation
Movies: Pay attention to dialogue, not just subtitles
YouTube: Channels that teach idioms in context
Reading: Novels with dialogue show natural usage
Language exchange: Practice with native speakers
Write your own natural conversations
Describe your last week using at least 3 idioms naturally:
🎤 Speaking Practice (7 minutes)
Speak naturally using idioms, phrasal verbs, and colloquialisms:
Describe your last week using at least 3 idioms naturally
Give advice to someone learning English - use colloquialisms
Tell a funny story using phrasal verbs instead of formal verbs
React to hypothetical situations using casual responses
Remember: Focus on sounding natural, not on using as many as possible!
⏱️ Conversation Timer
7:00
✨ Lesson Wrap-up & Next Steps
🎯 What You Learned Today
Why idioms matter: They make you sound natural and native-like
Common idioms by category: Money, time, emotions, relationships
Colloquialisms: How people really talk in casual situations
Natural usage: When and how to use idiomatic language appropriately
🎯 Key Takeaways
Quality over quantity: Master 20 common idioms before learning 100 obscure ones
Context is everything: Same expression can be appropriate or inappropriate depending on situation
Don't force it: Use idioms only when they fit naturally
Listen actively: Pay attention to how native speakers use these expressions
Practice makes natural: The more you use them, the more automatic they become
📚 Homework Challenge
Choose ONE:
📺 Media Analysis
Watch one episode of an English TV show. Write down 10 idioms or colloquialisms you hear. Note the context and meaning.
✍️ Idiom Journal
For one week, keep a daily journal in English using at least 2-3 idioms or phrasal verbs each day. Focus on natural usage, not forcing them in.
🗣️ Conversation Practice
Have a conversation with a language partner or tutor. Challenge yourself to use 5 idioms or phrasal verbs naturally during the conversation. Ask for feedback on whether they sounded natural.
🔜 Next Lesson Preview
Lesson 50: C1 Final Challenge - Mastery Showcase
THE GRAND FINALE! Your final lesson where you'll demonstrate everything you've learned across 50 lessons. Prepare for a comprehensive C1-level challenge, presentation, and celebration of your incredible journey from A2 to C1!
Get ready for: Final presentation challenge, comprehensive Q&A, reflection on your transformation, and celebrating your achievement!
Self-Assessment
Which 5 expressions from today do you feel most confident using? Write a short paragraph using all 5 of them.
Reflection
How do you feel about using idioms and colloquialisms? What will you practice more?
🌟 You're one lesson away from completion!
You now sound more natural and native-like. One more lesson to go - let's finish strong!