be afraid to do sth害怕做某事
be sure (not) to do sth一定 務(wù)必 (不) 做某事
be suitable for sb to do sth 適合某人做某事
be ready to do sth準(zhǔn)備去做某事
be hard to do sth 做某事艱難
（sth）be uesd to do sth 某物被用來做某事
be used for doing sth ……被用來做某事
be willing to do sth樂意做某事
be able(unable) to do sth(不)能夠做某事
be serious about doing sth 認(rèn)真對(duì)待做某事
be +形容詞+ to do sth 做某事怎么樣
be +形容詞+ enough + to do sth足夠的……而可以做某事
be supposed to do sth 被期待做某事、應(yīng)該做某事
begin to do sth begin doing sth開始做某事
can’t couldn’t wait to do sth迫不及待做某事
decide (not) to do sth決定（不）做某事
encourage sb to do sth 鼓勵(lì)某人做某事
forget to do sth忘記做某事（事未做）
forget doing sth 忘記做了某事(事情已經(jīng)做了)
fail to do sth 做某事失敗
go on to do sth 繼續(xù)做另一件事
happen to do sth碰巧做某事
have a change to do sth
= have an opportunity to do sth有機(jī)會(huì)做某事
help sb to do sth help sb with sth 幫助某人做某事
have (no) time to do sth（沒有）有時(shí)間做某事
How long does it take sb to do sth?
花費(fèi)某人多少時(shí)間做某事
in order to do sth 為了做某事
invite sb to do sth邀請(qǐng)某人做某事
It’s a good time to do sth做某事的好時(shí)候
It’s one’s duty to do sth做某事是某人的職責(zé)
It’s +形容詞+ for of sb to do sth
做某事對(duì)某人來說怎么樣(注意for of用法)
It’s time （for sb） to do sth = It’s time for sth該（某人）做某事了。
It’s one’s turn to do sth 輪到某人做某事了
It takes sb some time to do sth花費(fèi)某人…時(shí)間做某事 （注意take的時(shí)態(tài), sb用賓格）
like to do sth like doing sth喜歡做某事
learn to do sth 學(xué)習(xí)做某事
need to do sth 需要做某事、
plan to do sth計(jì)劃做某事
prefer to do rather than do sth 寧愿做某事而不愿再…..
remember to do sth 記地去做某事
remember doing sth記地做了某事