Alvey

使役動詞

用形容詞來當補語: make(使,讓), keep(保持)  +原形動詞

Ex: It make me better.

   The hot milk keeps me warm.

需用to(不定詞)當受詞補語,表行為者要做某事: ask(要求), tell(告訴), want(要), need(需要)  +原形動詞

Ex: She wants me to help her.

不需用to當受詞補語,表行為者要做某事: make(使), have(要), let(讓)  +原形動詞

Ex: She makes me happy.

可加,可不加to當受詞補語: help(幫助)  +原形動詞

Ex: Jason helps the old man (to) cross the street.

need, want 有兩種用法

1.人+need/want +to+ 原形動詞

2.事,物+need/want + Ving.(現在分詞)/to+ be+ p.p.