could的否定句?

could的否定句? Could you come here?的否定答句 could的否定缩写形式 could的否定形式是什么 (1/4)紧急求助：could表情态用法.could you please.../could I...的回答肯定句与否定句所有书都是YES,I may,can,could,must的肯定否定句应怎么回答? may,must,could开头的疑问句怎么回答?请把肯定否定答句分别告诉我, The French book could be Tom's的否定句怎么变? 用could造句我需要的是肯定句和否定句各5句,当然越多越好哦~ 改为否定句Could you please turn off the TV she could read and write 改为否定句 could you please pass me the pen否定句 could you please open the door?改为否定句 Could you please open the window改成否定句 Could you please follow me?改为否定句 People thought they could make people fat.改为否定句 Could you please take out the trash?【改为否定句】 L could sing some english songs否定句