Các yêu cầu, đề nghị, xin phép và mời (can/could/would you ... ? etc.)
Phân biệt CAN, COULD và WOULD
1. Asking people to do things (requests):
- We often use can or could to ask people to do something:
E.g:
Can you wait a moment, please? or Could you wait a moment, please?
Liz, can you do me a favour?
Excuse me, could you tell me how to get to the station?
I wonder if you could help me.
- We also say "Do you think (you) could...?" (without using can):
E.g: Do you think you could lend me some money until next week?
- We can use will and would to ask people to do something:
Kate, will you do me a favor?
Would you please be quiet? I'm trying to concentrate.
2. Asking for things.
To ask for something, you can say Can I have...? or Could I have...?
E.g:
(in a shop) Can I have these postcards, please?
(during a meal) Could I have salt, please?
You can use May I have...?
E.g:
May I have these postcards, please?
3. Asking for and giving permission.
To ask for permission, we usually use can, could or may:
E.g:
(on the phone) Hello, can I speak to Tom, please?
"Could I use your phone?" "Yes, of course."
Do you think I could borrow your bike?
"May I come in?" "Yes, please do."
To give somebody permission to do something, we use can or may:
E.g: You can use the phone. or You may use the phone.
May is more formal and less used than can and could.
4. Offering to do things.
E.g:
"Can I get you a cup of coffee?" "Yes, that would be very nice."
"Can I help you?" "No, it's all right. I can manage."
5. Offering and inviting.
To offer something or invite somebody to do something, we use Would you like...? (not "do you like")
E.g:
"Would you like a cup of coffee?" "Yes, please."
"Would you like to come to dinner tomorrow evening?" "Yes, I'd love to."
I'd like... is a polite and formal way to show what we want.
E.g:
(at a tourist information office) I'd like some information about hotels, please.
(in a shop) I'd like to try on this jacket, please.
https://www.facebook.com/tienganh.cho.nguoidilam/posts/ph%C3%A2n-bi%E1%BB%87t-can-could-v%C3%A0-would1-asking-people-to-do-things-requests-we-often-use-c/770508489659655/