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In my first year of ESL teaching, a student once said to me, “Teacher, I know the words, but I don’t know how to say them different.” I realized then that being fluent in English isn’t just about knowing the dictionary — it’s about having choices. It’s about knowing seven ways to say you’re tired, and knowing which one fits your boss, which one fits your best friend, and which one you’d use in a formal email. You’ll covers the seven most essential expressions that trip up learners, organized by the situations where you’ll actually use them. For more, see our business presentation phrases. For more, see our English job interview tips.
Each section includes variations by register (formal, neutral, casual), real-world examples, common mistakes, and a quick quiz. By the end, you’ll have practical alternatives at your fingertips for the expressions you use every day.
Key Takeaways
- Register (formality) drives word choice — “Good luck” is universal, but “Break a leg!” only works with close friends and performers.
- Clarification phrases signal that you’re paying attention — “To put it simply” and “What I mean is” show you’re working to be understood.
- Preferences range from strong to polite — “I’m crazy about it” shows enthusiasm; “It appeals to me” shows interest without gushing.
- Fatigue and urgency have casual and formal variants — never say “I’m whacked” to your boss; use “I’m exhausted” instead.
- Birthday and farewell wishes are brief moments to show warmth — a simple “Many happy returns!” beats a generic greeting every time.
1. Ways to Clarify and Say “In Other Words”
When you need to restate an idea more clearly or emphasize what you mean, these phrases signal that you’re rephrasing for clarity — not being repetitive.
| Expression | Register | When to Use It | Example |
|---|---|---|---|
| To put it simply,… | Neutral | Explaining complex ideas in plain language | “To put it simply, we need to cut costs by 10%.” |
| What I mean is… | Casual to neutral | Clarifying a point that was misunderstood | “What I mean is that I’m not opposed — I just need more information.” |
| That is to say,… | Formal | Written communication, formal speech | “The deadline is non-negotiable; that is to say, we must deliver by Friday.” |
| Simply put,… | Neutral | Making a point clear and concise | “Simply put, this product works better than the competition.” |
| Put differently,… | Formal | Academic or professional contexts | “Put differently, the algorithm prioritizes speed over accuracy.” |
| Basically,… | Casual to neutral | Informal conversation, stripping away details | “Basically, I forgot my keys at home.” |
| To clarify,… | Semi-formal | Addressing a potential misunderstanding | “To clarify, I’m not saying your work is bad — I’m saying the deadline is tight.” |
Tip: In written communication (email, reports), use “That is to say” or “Put differently.” In conversation with friends, “Basically” or “What I mean is” feels more natural. In meetings with authority figures, “To clarify” is the safest choice.
2. Ways to Say “Good Luck”
Luck wishes work in job interviews, competitions, performances, and personal challenges. The phrase you choose signals your relationship and the formality of the situation.
| Expression | Register / Context | Appropriate for… |
|---|---|---|
| Good luck! | Neutral, universal | Anyone, any situation |
| Best of luck! | Slightly more formal | Professional contexts, clients you know |
| I hope it all goes well! | Warm, sincere | Friends, family, personal challenges |
| Break a leg! | Casual, playful | Performers, close friends attempting something difficult |
| Knock ’em dead! | Casual, enthusiastic | Close colleagues before a presentation or pitch |
| You’ll do great! | Supportive, casual | Friends, teammates, people you know well |
| Fingers crossed! | Casual, lighthearted | Friends, colleagues in informal settings |
| Go for broke! | Very casual, energetic | Close friends, team members on sports teams |
Example dialogue: Before a job interview, your friend might say “Break a leg!” but a professional mentor would say “Best of luck!” Both mean the same thing, but the register is different.
3. Ways to Say “Happy Birthday”
Birthday greetings are one of the few times when a slightly creative or warm variation feels authentic rather than stiff.
- Happy birthday! (universal, standard)
- Many happy returns! (warm, traditional)
- Have a great one! (casual, friendly)
- I wish you a wonderful birthday. (formal, heartfelt)
- I wish you all the best on your special day. (formal, personal)
- Have a fabulous birthday! (enthusiastic, upbeat)
- All the best! (quick, general — works for any occasion)
- May your birthday be filled with laughter! (poetic, warm)
Register guide: Use “Many happy returns!” with older relatives or in formal cards. Use “Have a fabulous birthday!” with close friends. Use “Happy birthday!” in group chats and casual settings.
4. Ways to Say “Good Night” and Bedtime Farewells
Evening greetings and goodbyes shift from afternoon formality to something warmer and more intimate.
| Expression | Register | When to Use |
|---|---|---|
| Good night. | Neutral, formal | Professional contexts, with people you don’t know well |
| Sleep well. | Warm, caring | Family, close friends, when someone is unwell |
| Sweet dreams! | Warm, playful | Children, partners, close friends |
| Sleep tight! | Affectionate, slightly dated | Children, partners (often followed by “Don’t let the bedbugs bite!”) |
| Night, night! | Very casual, playful | Close relationships, informal messaging |
| Nighty night! | Playful, childlike | Children, partners, people you’re very close to |
| Get some rest. | Neutral to caring | Colleagues who look tired; friends during illness |
Register alert: Don’t say “Sweet dreams!” or “Nighty night!” in professional settings. Reserve these for personal relationships. With colleagues, stick to “Good night” or “Have a good evening.”
5. Ways to Express Preferences: “I Like It”
Preference expressions range from mild interest to passionate enthusiasm. Choosing the right one shows emotional intelligence.
| Mild Interest | Moderate Enthusiasm | Strong Passion |
|---|---|---|
| It appeals to me. | I’m really into it! | I’m crazy about it! |
| I’m keen on it. (formal) | I’m fond of it. | I can’t get enough of it. |
| I’m partial to it. | I’ve grown to like it. | I’m addicted to it. (usually playful) |
| It’s not bad. | I quite like it. | I love it! |
Example context: “Mild interest” is perfect for a new colleague’s suggestions. “Moderate enthusiasm” suits close friends. “Strong passion” works for hobbies and things you genuinely love.
6. Ways to Express Dislike: “I Don’t Like It”
Dislike can be expressed diplomatically (important in professional contexts) or directly (fine among close friends).
| Diplomatic / Formal | Neutral | Direct / Casual |
|---|---|---|
| That’s not for me. | I’m not into it. | I pass. |
| I’m not fond of it. | I don’t appreciate that. | That’s not my thing. |
| It doesn’t appeal to me. | I’m not a big fan of it. | I’m not feeling it. |
| I’d rather not. | I’m not keen on it. | No thanks. |
✓ Correct in a meeting: “I’m not sure that approach will work — it doesn’t appeal to me.”
✓ Correct with a friend: “Nah, I pass. That’s not my thing.”
7. Ways to Express Urgency: “Hurry Up”
Urgency can be phrased as an instruction, a suggestion, or a playful nudge depending on your relationship and the context.
| Expression | Register / Tone | When to Use |
|---|---|---|
| Hurry up. | Direct, slightly impatient | Family, close friends in a rush |
| Get a move on. | Casual, mildly urgent | Friends, informal workplace |
| Get cracking. | Casual, energetic | Close colleagues, team members starting a task |
| Chop-chop! | Very casual, playful | Friends, children, lighthearted situations |
| Shake a leg. | Casual, playful | Friends, informal contexts |
| Come on. | Neutral to impatient | Any context, but tone matters |
| Move it. | Direct, commanding | Emergency situations, parents to children |
| Let’s pick up the pace. | Professional, collaborative | Workplace meetings, team contexts |
✗ Don’t say in a meeting: “Chop-chop!” — sounds too playful.
✓ Say in a meeting: “Let’s pick up the pace” — sounds collaborative.
8. Ways to Express Fatigue: “I’m Tired”
Tiredness is a universal human condition, and English has many colorful ways to express it. Register matters when you’re talking to authority figures.
| Casual / Colorful | Neutral | Formal |
|---|---|---|
| I’m whacked. | I’m tired. | I’m exhausted. |
| I’m dog tired. | I’m worn out. | I’m fatigued. (medical/formal) |
| I’m beat. | I’m spent. | I require rest. (very formal) |
| I’m bushed. | I’m knackered. (British) | |
| I’m dead-tired. | I’m running on empty. |
Register example: Tell your boss “I’m exhausted” or “I’m spent.” Tell a friend “I’m whacked” or “I’m dead-tired.” Never say “I’m whacked” to a client.
Sample Dialogues
Clarifying a point in a meeting
Manager: So, we’re cutting the marketing budget?
You: To clarify, we’re reallocating it — not cutting it. We’re shifting funds from print to digital.
Manager: Ah, got it. What I mean is, we’re not reducing the overall spend?
You: Exactly. We’re maintaining the budget; we’re just changing where it goes.
Expressing preferences with friends
Friend 1: So, did you like the new restaurant?
Friend 2: I mean, it was okay, but honestly I’m not crazy about it. The pasta was dry.
Friend 1: Yeah, I’m not fond of it either. Let’s go back to that Italian place on 5th Street.
Friend 2: Now that place? I’m totally into that restaurant. Their risotto is amazing.
Common Mistakes and How to Fix Them
✗ Incorrect: “I’m crazy about this proposal” said to a client on a first call.
✓ Correct: “This proposal appeals to me” or “I think this could work well.”
Why: “Crazy about” is too casual for a new professional relationship. Show enthusiasm, but reserve emotional language for people you know.
✗ Incorrect: “To put it simply, the quarterly results were bad.”
✓ Correct: “To put it simply, we missed our targets this quarter. Here’s the action plan.”
Why: Use clarification phrases to add value, not to sound condescending. Always follow up with the clear explanation.
✗ Incorrect: “I’m whacked” sent in an email to your company director.
✓ Correct: “I’m exhausted and will need to take a personal day tomorrow.”
Why: Casual expressions of tiredness can read as unprofessional in formal writing. Use neutral or formal language with authority figures.
✗ Incorrect: “Break a leg!” in a follow-up email after a job interview.
✓ Correct: Don’t use this expression in writing. If speaking to a friend before an interview, “Break a leg!” is perfect.
Why: “Break a leg!” is spoken, playful language. In writing, it looks forced or unclear.
Quick Quiz
- Your boss asks for your opinion on a new project. Which expression should you use: “I’m crazy about it!” or “It appeals to me”?
- Complete the phrase: “To ______, we need to cut costs by 20%.”
- Which phrase is appropriate when saying goodnight to a close friend: “Good night” or “Sweet dreams!”?
- Which expression would you use in a professional meeting to show urgency: “Chop-chop!” or “Let’s pick up the pace”?
- If someone misunderstands your point, which clarification phrase is most natural: “That is to say” or “What I mean is”?
Answers: 1. “It appeals to me” · 2. put it simply / clarify · 3. “Sweet dreams!” · 4. “Let’s pick up the pace” · 5. “What I mean is”
Related Articles
- ↑ Master Pillar: English Speaking
- Useful English Greetings and Expressions
- ↑ Back to pillar: English Expressions (Pillar)
Frequently Asked Questions
What’s the difference between “I’m tired” and “I’m exhausted”?
“I’m tired” is neutral and can be used in any context. “I’m exhausted” is stronger and suggests deeper fatigue — reserve it for situations when you’re genuinely worn out. In formal or professional settings, “exhausted” is the safer choice because it sounds more serious.
Can I use “Break a leg!” in an email?
Not really. “Break a leg!” is a spoken, playful expression. In written communication (email, text), it can read as unclear or forced. Use “Best of luck!” or “I hope it goes well!” in emails instead.
Is “I’m crazy about it” appropriate in all contexts?
No. It’s great with close friends and family, but too casual for first meetings or with authority figures. In professional contexts, use “It appeals to me” or “I think this is a strong option.”
What’s the most universal way to say “good night”?
Simply “Good night.” It’s formal enough for strangers, neutral with colleagues, and warm enough for family. If you want to be warmer, add their name: “Good night, Sarah.”
Can I use “What I mean is” to interrupt someone?
Technically yes, but it’s softer than interrupting with facts. “What I mean is” suggests you’re clarifying, not contradicting. If you need to correct someone, consider a gentler phrase like “Actually, I think there’s another way to look at this.”
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