1.It's time to do sth./It's time for sth 该做某事的时候了
例句:it is the real time to get the plan started. 现在执行计划的紧急时候了。
#39;t wait to do sth. 迫不及待要做某事=can’t help doing sth情不自禁做某事（但是这个不接不定式结构，同学们请注意区分）
例句:We can't wait to go climbing the highest mountain in the region. 我已经破布吉岛想要登上这里最高的山峰了。
3.Ask/tell sb. (not ) to do sth. 要求/告诉某人(不)做某事
例句：my parents asked me to do more exercise and not to sleep too much。我父母叫我不要睡懒觉而要多多做运动才好。
4.Allow sb. to do sth. 允许某人做某事
例句:This university allows all students go to library during weekends。这所学校允许所有学生在周末到图书馆学习。
5.Be supposed to do sth. 应该做某事
例句: You are supposed to have done all the cleaning job before breakfast。你应该在早餐前就把清洁工作做好。
6.Would like/want (sb.) to do sth. 想要做某事
例句:will you come to the dinner party？-----I’d love to but I have to take care of my younger sisiter.你会参加今晚的餐会吗？-----我很愿意去，可是我还要照顾幼小的妹妹。
7.Have sth/nothing to do 与……有关/与……无关
例句:This project totally have nothing to do with that company。这个工程和那家公司一点关系都没有。
is adj+to do sth
例句:I find it difficult to live without a pet. 我发现没有宠物的生活很难过。
9.Prefer to do sth. rather than do sth. 宁愿做某事，而不愿做某事
例句:I prefer to go outside rather than staying at home. 我宁愿出去玩也不愿意待在家。
今天就列举这么多，知识点其他的还没有列举完毕，未完的就让给同学们发挥。多多从例句中领会。