He want to do sth.中的want有3单变化吗?

want to do sth中的do是原形吗?有没有三单 'want sb not to do sth中的not随sb变化吗?比如I want she doesn't 还是not 有want doing sth.还是want to do sth. want to do Sth want to do sth中的want是什么词性 Want sb to do sth/want to do sth want to do sth 造句 像：want to do sth. want to do sth.= want sb to do sth. want to do sth. 造句 want sb to do sth与want sb do sth 与want sb doing sth有什么区别,怎样用