be willing/ready to do sth. 乐意/愿意做某事
be ready to help = be helpful 乐于助人
choose (chose) to do sth.
make a plan for/to do sth. plan a day out for/with sb
What great fun it is to do sth.!
agree to do/to let sb. do sth. (同意某人做某事)
wait for sb. (to do) / can’t wait to do/for sth.
offer (-ed;-ing) to do sth. (offer sb. sth. = offer sth. to sb.
advise sb. not to do sth. (give sb. some advice on how to do sth.)
don’t need/have to do sth. (needn’t do; don’t need any help)
seem to do sth. /seem (to be) adj. (It seems that; There seems to be no hope/need to do sth.)
have something /nothing to do
be the first/second/last to do sth.
tell /show sb. how to do it /which one to choose /what to do /where to go (疑问词+to do)
be going to do sth. (打算；迹象；对应)
try (not) to do sth. / try one’s best to do sth.
learn (how) to do / teach sb. (how) to do sth.
use A to do B/be (less/more) widely used
fail to do sth. (没能做成某事/做某事失败 failure)
It’s very kind/nice/brave /careful/careless/polite… of you to do sth.
It’s hard/easy/necessary/important/possible/lucky… for sb. to do sth.
I found it (was) difficult /easy to do sth.
hope to do / wish to do / wish sb. to do sth.
hope sb. (you/we they/he/she/it) will do sth.
invite sb. to (do) sth. an invitation lette
