精选优质文档-倾情为你奉上只能跟动词原形的结构1. Why dont you do sth ?=Why not do sth ?你为什么不做某事呢？2. Youd (had) better (not)do sth 你最好（别）做某事3. Shall I /we do sth ?我们做某事好吗？4. Let/make/have sb do sth 使/让某人做某事5. help sb(to) do sth 帮助某人做某事6. Please do sth请做某事7. Please dont do sth =Dont do sth ,please 请不要做某事8. watch/see/hear sb do sth 看/听见某人做某事9. would rather do sth than do sth 宁愿做某事也不愿意做某事10. would rather do sth宁愿做某事11. notice sb do sth 注意到某人做某事12. used to do sth 过去常常做某事13. be able to d
