Future SimpleWe will go to the concert, won't we?He won't work in the ivening, wiil he?Present ContinuousThey are playing in the yard, aren't they?He isn't reading at the moment, is he?Present PerfectShe has done her homework, hasn't she?We haven't received the invitation, have we?Past SimpleShe went shopping yesterday, didn't she?He didn't spend all his money last Friday, did he?