Tom's mother can swim fast 改成否定句

Tom's mother can swim fast 改成否定句 can't,mother,Tom's,swim.怎么造句 英文题,高手来了喂1. Tom's mother has lunch at home.(改成否定句)Tom's moth My mother can paint and swim.变为否定句是什么? My mother can draw and swim.(改变否定句） "Tom can swim very well."改否定句,怎么改! Tom can swim同意句 I think it's Tom's如何改成否定句 Tom can sing and dance.（改成否定句） Tom's mother cooks nice food.(改为否定句） England is Tom's motherland（改成否定句） my brothers can swim fast.(改成现在进行时）