GOOD

obligation

Asking for premission

May I ...?

Do you mind if I ...?

I wonder whether I could ...?

Would it be ok if I...?

Asking for help 

Could you..?

Would you help me to ...?

I was just wondering if you could...?

Could you tell me...?

Asking for premission

May I ...?

Do you mind if I ...?

I wonder whether I could ...?

Would it be ok if I...?

Asking for help 

Could you..?

Would you help me to ...?

I was just wondering if you could...?

Could you tell me...?

take the day off tomorrow 

give ma a lift

tell me the time 

asking  for.....

obligation： 责任 responsible