动词不定式，为非谓语动词。
在英语语法中，动词不定式是指动词中的一种不带词形变化从而不指示人称、数量、时态的一种形式。
它之所以被称做不定式，是因为动词不被限定，或者说不被词形变化所局限。不定式属于非谓语动词形式。
本文主要讲解【含有不带to的动词不定式句型】和【 含有带to的动词不定式句型】
含有不带to的动词不定式句型
1. had better (not) do sth. 最好(不)做某事
2. would you please (not) do sth 你可以做某事吗?
3. why not do sth.为什么不做某事?
why don't you do sth. 为什么你不做某事?
4. Shall we do sth.?我们要做某事吗?
5. let sb do sth.让某人做某事
6. make sb. do sth. have sb do sth使某人做某事
7. feel sb do sth感觉某人做某事
含有带to的动词不定式句型
1. It's time to do sth.该是做某事的时候了
2. It takes sb. some time to do sth做某事花了某人时间
3. tell/ ask/ want/encourage/invite/ sb. to do sth.告诉、叫、想、鼓励、邀请某人做某事
4. Would you like to do sth.?你想做某事吗?
5. It's good/bad to do sth做某事好/不好
6. It' s good/bad for sb.to do sth.对某人来说，做某事好/不好
7. be +adj.+ enough to do sth.足够+形容词做某事
8. sb. is ready to do sth.某人准备好做某事
9. It's + adj.+ for sb. to do sth.做某事对某人+形容词(做这件事对你好)
10. It's + adj.+ of sb. to do sth某人做某事+形容词(你做这事真好)
11. would like/love /decide/want/wish/to do sth. 想、喜欢、决定、想、希望做某事
12. would like/love sb. to do sth.想让某人做某事
13. prefer to do rather than do sth.宁愿做某事而不愿做某事
【例如】: I prefer to read rather than write .
意思同:I prefer reading to writing.
又如:I prefer to stay at home rather than go out.
再如: prefer=like better ，即: I prefer red.=I like red better.
14. how/ when/where/whether to do sth怎么、什么时候、在哪里、要不要做某事
15. can't wait to do迫不及待做某事
16. too .... to do ....太怎么样而不能做某事
17. be afraid /ready/able/sure to do害怕、准备、能够、确定做某事
18. It' s time to do sth到该干某事的时候了
19. My job is to do sth我的工作是做某事
20. My dream is to do sth我的梦想是做某事
21. My hobby is to do sth我的业余爱好是做某事
22. refuse to do sth拒绝做某事
23. warn sb to do sth告诫某人做某事
24. pretend to do sth假装做某事
25. teach/learn to do sth教做某事、/学习做某事
26. need, to do sth需要做某事
27. be willing to do sth愿意做某事
28. .try to do sth努力做某事
29. try one's best to do sth尽某人最大努力做某事
30. agree to do sth同意做某事
31. seem to do sth好像似乎做某事
32. plan to do sth /make a plan to do sth计划做某事
33. in order to do sth 为了做某事
34. have a chance to do sth有机会做某事
35. find it +adj + for sb to do sth发现做某事是....
36. have sth to do有某事要做
37. There is sth for sb to do对某人来说，有某事要做
38. be anxious to do渴望做某事
39. afford to do sth 支付得起做某事
两个动作连用，表目的
40. used to do sth过去常常做某事
41. be used to do sth被用来做某事
42. be supposed to do sth理应做某事，应该做某事
43. allow sb to do sth允许某人做某事
44. sb be allowed to do sth某人被允许做某事
45. the best way is to do sth最好的方法是做某事
46. the next step is to do sth下一步是做某事
47. have nothing to do with 与某事无关
48.the first thing is to do sth第一件事是做某事
49. it's best to do sth最好做某事
50.it's a good time to do sth这是做某事的最好时间
it is a good way to do sth 做某事是个好的办法
51. add to do补充做某事
52. urge sb to do催促某人做某事
53. educate sb to do教育某人做某事
54. wait for sb to do等待某人做某事
55. order sb to do命令某人做某事
56. happen to do sth碰巧做某事
57. lead sb to do sth领导某人做某事
58. it's a good place to do sth这是做某事的好地方
59. invite sb to do邀请某人做某事
60. get to do sth设计做某事。
61. expect to do期望做某事
62. volunteer to do sth志愿做某事
63. offer to do sth 主动提供做某事
64. have an opportunity to do有机会做某事
65. get sb to do sth使某人做某事
66. it's one's duty to do sth做某事是某人的责任
67. use sth to do sth用某物做某事
68. be sure to do sth一定会做某事
69. have to do sth不得不做某事
70. be able / unable to do sth能够 /不能做某事
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