To perform an action
Past Participle form
I will do my homework tomorrow.
She's going to do housework next week.
A: When will you clean your room?
B: I'll do it tomorrow.
A: If you don't do it you'll have to stay in on Saturday and do it then.
I did the washing-up after dinner.
He did some work at the weekend.
A: What did you do this weekend?
B: I did a little work and then went for a walk.
A: Do you work every weekend?
B: No, I did it this weekend because I was off on Friday.
I'm doing it now! Leave me alone!
My friend is doing part of the project and I'm doing the other part.
A: What are you doing?
B: I'm trying to find my keys.
A: Oh, I've not seen them. Sorry.
I've done my homework.
We've done all this work and it's been for nothing.
A: What have you done?
B: Nothing. It's just a small accident.
A: Small? The stain is huge and won't come out.
B: It'll be fine.