want to do sth ,seem to do sth ,help to do sth,need to do sth.等,这些动词后面都有to do,什么情况下动词后面要跟to do

问题描述:

want to do sth ,seem to do sth ,help to do sth,need to do sth.等,这些动词后面都有to do,
什么情况下动词后面要跟to do

用到这些词后面又是动作时就用to do

PA

除了动词固定搭配(如enjoy doing,had better do等),其他都跟to do.