初中常用的：
只加doing
put off doing practice doing consider doing keep doing keep sb. doing
finish doing enjoy doing mind doing allow doing giveup doing
be busy doing spend…(in) doing end updoing stop doing(停止做)
try doing（试着做）forget doing（忘了做过某事） remember doing（记得做过某事）
只加to do
want to do would like to do plan to do decide todo wish to do attempt to do
hope todo used to do offer to do mean to do need todo seem todo learn to do fail to do(没能…) pretend to do agree to do can(not) afford to do getready to do be supposed to do be afraid to do in order (not) to do ask sb.to do tell sb.to do order sb.to do allow sb.to do(sb. be allowed todo) help sb.(to)do encourage sb.to do lead sb.to do prefer to do too…to do 形+enough或enough+名 to do
It’s time to do 疑问词+to do be sure todo stop to do(停下来去做)
forgetto do（忘记去做）rememberto do（记得去做） try to do （试图、尽力去做）
I’m sorry / happy…to do It’s+名/ 形+to do I find/think/ feel/ make it+形 + to do
It takes sb.some time to do be willing to do be used to do(被用来) happen to do（碰巧）