動詞不定式

注意

疑問詞帶不定式在句中作成分時，謂語動詞用單數(shù)。如：The question is how to put it into practice. 問題是怎樣把它付諸實施。

2. 不定式作補(bǔ)語

1) 動詞+賓語+不定式(to do)

advise, allow, appoint, believe, cause, challenge, command, compel, consider, declare, drive, enable, encourage, find, forbid, force, guess, hire, imagine, impel, induce, inform, instruct, invite, judge, know, like, order, permit, persuade, remind, report, request, require, select, send, state, suppose, tell, think, train, trust, understand, urge, warn

a. Father will not allow us to play on the street.　父親不讓我們在街上玩耍。

b. We believe him to be guilty. 我們相信他是有罪的。

Find 的特殊用法

Find 后可用分詞做賓補(bǔ)，或先加形式賓語，再加形容詞，最后加帶to 的動詞不定式。find后也可帶一個從句。此類動詞還有g(shù)et，have。

I found him lying on the ground.

I found it important to learn.

I found that to learn English is important.