A friend asks you to dinner on Friday and you can't go. A polite English no has three parts: acknowledge the offer, give a short reason, and offer something else if you can. Oh, I'd love to, but I'm working late Friday. How about next week?
You don't need all three every time. A salesperson gets a thank-you and a no. A close friend gets the full version. The rest of this guide shows which parts to use with whom.
The three parts
- Acknowledge: Thanks for asking. / That sounds great. / I appreciate you thinking of me.
- Reason: I've already got plans. / I'm swamped this week. / I'm trying to save money this month.
- Alternative: Can we do next weekend instead? / I can't do Thursday, but I could help Monday. / Maybe next time?
The reason should be short and true. One clause is enough. A long explanation sounds like an excuse, and it gives the other person something to argue with (Oh, but you could leave early!).
What learners often say, and what native speakers say instead
- I don't want. → I think I'll pass this time, thanks. I don't want is grammatically incomplete (you need to or an object), and even I don't want to sounds blunt. Native speakers soften refusals with I think, this time and thanks.
- No, I can't. → Oh, I can't, unfortunately. I've got something on that night. A bare No, I can't sounds like you're closing the door. Adding unfortunately and a reason tells the other person it isn't about them.
- Sorry, I have no time. → Sorry, I'm really tied up this week. I have no time can sound like the other person isn't worth your time. I'm tied up / I'm swamped / I'm slammed describe your week, not your priorities.
- Let me think about it. → Let me check my schedule and get back to you by Thursday. Depending on context, Let me think about it can be heard as a soft yes (so they wait for you) or as a polite no (so they never ask again). If you mean maybe, give a time. If you mean no, say no kindly now.
- Maybe. to an invitation you know you won't accept → I don't think I can make it, but have fun! A vague maybe keeps the other person planning around you.
With friends: invitations
Friends expect the warmest version, and an alternative matters most here.
A: We're doing karaoke Saturday. You in?
B: Ah, I wish! I'm visiting my parents this weekend. Send me videos, though.
A: Want to grab dinner tonight?
B: I'm wiped out, honestly. Can we do tomorrow instead?
A: Sure, tomorrow works.
Other lines worth having ready:
- I'd love to, but I've already made plans.
- That sounds fun, but I'm going to sit this one out.
- I'm going to have to pass, but count me in next time.
- Rain check? (meaning "Can we do this another time?")
I'm going to sit this one out and I'll pass are friendly ways to say no without any reason at all. They work for group plans where your absence doesn't change much.
With coworkers: favors
When a coworker asks for help, say what you can do instead of only what you can't.
A: Could you look over my slides before the meeting?
B: I'd like to, but I'm on a deadline until three. I could take a quick look after that, if that helps?
A: Can you cover my shift on Sunday?
B: Sorry, I can't this Sunday. I've got family stuff. Have you asked Jordan?
Pointing to someone else (Have you asked Jordan?) is a common, helpful way to close a no. Just make sure it isn't dumping the problem on a colleague who is equally busy.
With your boss: extra work
Saying no to a manager usually means asking about priorities rather than refusing outright. Make the trade-off visible and let them choose.
Manager: Can you take on the client report this week?
You: I can, but I'd need to push back the budget review. Which one is more urgent?
Manager: We need someone to lead the onboarding project.
You: I appreciate you thinking of me. Right now I'm at capacity with the launch. Could I pick it up once that's done in March?
Useful lines:
- I want to do this properly, and I don't have the bandwidth right now.
- If I take this on, something else will slip. What should I deprioritize?
- I can't take the whole thing, but I could handle the research part.
Avoid That's not my job. Even when it's true, it sounds like you don't care about the outcome. I'm not the best person for this. Priya knows that system much better. makes the same point and helps.
With salespeople and strangers
Here you don't owe a reason or an alternative. A thank-you and a clear no is polite.
- No, thank you.
- I'm all set, thanks. (in a store, when staff offer help)
- I'm just looking, thanks.
- Thanks, but I'm not interested.
- I'm going to pass for now. Thanks for your time.
Salesperson: Would you like to sign up for our store card? You'll save 15 percent today.
You: No, thanks. I'm all set.
Salesperson: Are you sure? It only takes a minute.
You: I'm sure. Thanks, though.
If they push, repeat the same no with the same calm tone. A new reason each time invites a new counterargument.
How the tone changes
- Very casual: Can't, sorry! Next time?
- Friendly: Oh, I'd love to, but I'm busy Friday. How about Saturday?
- Polite at work: Unfortunately I won't be able to make it. I have a client call at that time.
- Formal or written: Thank you for the invitation. Regrettably, I'm unable to attend.
Pick one level and keep it. Can't, sorry! to a senior manager can sound careless. Regrettably, I'm unable to attend to a friend inviting you to tacos sounds cold.
Make "I'd love to, but…" automatic
The hard part is that the polite version has to come out fast, before No, I can't does. In MirrorSay, say your own refusal the way it comes to you, for example Sorry, I have no time this weekend, and see how a native speaker would say it. Then shadow that version with the reference audio at 0.8× and compare word-by-word rhythm until I'd love to, but… comes out in one breath. Try four real ones from your week: a friend, a coworker, your manager, a salesperson.
For the other side of this, asking for things without sounding pushy, see polite English requests. For pushing back in a meeting, see how to interrupt and disagree politely.
FAQ
Do I always have to give a reason?
No. With friends and coworkers a short reason sounds warmer, but I can't make it, sorry is fine. With salespeople and strangers, no reason is needed at all.
Is "I'm busy" rude?
On its own it can sound abrupt. I'm busy that night, unfortunately or I'm swamped this week sounds fine, especially with an alternative after it.
How do I say no to something I already said yes to?
Say it early and own it: I'm really sorry, but I have to cancel on Friday. Something came up at work. Can I make it up to you next week?
MirrorSay is a free English speaking app: say a sentence, see how a native speaker would say it, then shadow it with word-by-word rhythm feedback. No sign-up; speech is processed on-device whenever possible.