语法(何时用like doing 何时用like to do

句首做主语何时用doing 何时用to do 句首何时用doing、to do 、do . somebody was thought to do/ have done.句型中,何时用to do,何时have do to be doing sth 怎么用,何时用? 何时用not to do sth 何时用not do sth like,like to do 和like doing,like是什么意思 like doing 与like to do like to do 和 like doing区别 like to do 和like doing区别? never like 后面用to do还是doing 何时该选to do不定式形式?何时该选doing形式 知道一个英语短语的用法例：like doing sth like to do sth 怎样在翻译一个句子时,用哪一个语法