Should I clean my room?句子的否定回答

Should I clean my room?句子的否定回答 I should have keep my room clean.为什么加have? I clean my room on the weekend改为否定句 I'm going to clean my room tonight.(改为一般疑问句,做否定回答)求帮忙啊, My parents (clean the room) erery sunday 改疑问句 否定句 肯定回答 否定回答 I often clean my room.(用now改写句子). I clean the room改为否定句 I would like to play football.变为否定句 I often clean my room.变为 ------Must I clean the room? 的肯定回答 I should have keep my room clean.为什么要加have I should study hard and clean my room this week.请问这句怎么改成被动 I should have keep my room clean.为什么要加have啊?