be afraid to do sth害怕做某事
be sure (not) to do sth一定 務必 (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 認真對待做某事
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(事情已經做了)
fail to do sth 做某事失敗
go on to do sth 繼續做另一件事
happen to do sth碰巧做某事
have a change to do sth
= have an opportunity to do sth有機會做某事
help sb to do sth help sb with sth 幫助某人做某事
have (no) time to do sth（沒有）有時間做某事
How long does it take sb to do sth?
花費某人多少時間做某事
in order to do sth 為了做某事
invite sb to do sth邀請某人做某事
It’s a good time to do sth做某事的好時候
It’s one’s duty to do sth做某事是某人的職責
It’s +形容詞+ for of sb to do sth
做某事對某人來說怎么樣(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花費某人…時間做某事 （注意take的時態, sb用賓格）
like to do sth like doing sth喜歡做某事
learn to do sth 學習做某事
need to do sth 需要做某事、
plan to do sth計劃做某事
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