一般情况 :谓语动词+to do ,如 want to do,tell sb to do,ask sb to do
二般情况:谓语动词+doing ,如 enjoy doing,finish doing
三般情况:谓语动词+do ,如 make sb do ,let sb do
扩展资料
但是,like doing=like to do, start/begin doing=start /begin to do
help的用法:
help sb with +名词
help sb to do
help sb do