7. be+adj.+enough to do sth.
8. sb. is ready to do sth.
9. It’s+adj.+ for sb. to do sth.
10. It’s+adj.+ of sb. to do sth.
11. would like/love /decide/want/wish/to do sth.
12. would like/love sb. to do sth.
14. what/how/ when/where/whether to do sth
15. can’t wait to do
16. too … to do …
17. be afraid /ready/able/sure to do
五、下列结构用带to的动词不定式和ing形式含义不同：
1.stop to do/ doing
2.forget to do/ doing
3.remember to do/doing
4.go on to do/doing
5.like to do/doing
6.love to do/doing
7.prefer（喜欢） to do/doing
8.hate（讨厌）to do/doing
六、下列结构用带to的动词不定式和ing形式含义相同：
1.begin to do/doing
2.start to do/doing
3. learn to do/doing
七、下列结构用不带to的动词不定式和现在分词的含义不同：
用不带to的动词不定式强调动作的完成过程；用现在分词强调动作的进行状态。
1．hear sb do sth./doing
2.listen sb do sth./doing
3.look at sb do sth./doing
4.see sb do sth./doing
5.watch sb do sth./doing
6.notice（注意）sb do sth./doing