youdbetter否定形式怎么变
had better not． you had better do sth你最好做某事．否定形式是you had better not do sth你最好不要做某事 you'd better drive a car改为否定句是：you'd better not drive a car。 you'd better原型是youhad better，表示“最好”，可视为“情态动词”，后接动词原形，否定式是直接在其后加not，其他内容不变。 英语改为否定句的方法： 1...