I don't usually watch TV at the weekend.2.The students don't  always have  classes   on weekends.3.You can't often read books in your room.4.Amy and Sam don't usull...【主語(yǔ)（非三單）+動(dòng)詞原形】don't,can't,咋來的？不是模仿句子嗎，就用否定形式模仿，這種簡(jiǎn)單句的否定就是don't,can't,+動(dòng)詞原形例句錯(cuò)了We not often play football inthe park.【W(wǎng)e notoften play football inthe park.】（一般現(xiàn)在時(shí)）【主語(yǔ)（非三單）+動(dòng)詞原形】【W(wǎng)e notoften play football inthe park.】這句話是錯(cuò)誤的，要么加don't，要么去掉not，你需要哪個(gè)你答得很好。全對(duì)！！呵呵，采納你，200分歸你了！