They _________ do their homework today because it is a holiday at the school.

I ______ speak French without a problem now because I have had many lessons.

Do you ______ clean the house every day or every week?

I may _________  able to come to your party if I have the time.

I _______ go now because I am already late for my class.

I could ________ bought that car but I didn't have enough money to pay for the petrol.