1.Its time to do sth./Its time for sth 该做某事的时候了
eg：Now its time to sing alone. 现在是独自唱下去的时候了。
2.cant wait to do sth. 迫不及待要做某事
eg：We cant wait to have a try. 我们等不及想要常试一下了。
3.Ask/tell sb. （not ） to do sth. 要求/告诉某人（不）做某事
eg：Did I not tell you to help robbery/homicide？ 难道我没有告诉你要去协助调查抢劫谋杀案么？
4.Allow sb. to do sth. 允许某人做某事
eg：As long as I am alive， Ill not allow you to do that. 只要我活着就不允许你做那件事。
5.Be supposed to do sth. 应该做某事
eg：I did everything right， everything I was supposed to do. 我做的一切都是正确的，我做了一切我该做的事。
6.Would like/want （sb.） to do sth. 想要做某事
eg：I would like some coffee. 我想要一点儿咖啡。
7.Have sth/nothing to do 与有关/与无关
eg：This thing has nothing to do with you. 这事和你一点关系也没有。
8.find it +adj. to do sth. 发觉做某事
eg：I find it difficult to live with him. 我发现跟他生活在一起是很困难的。
9.Prefer to do sth. rather than do sth. 宁愿做某事，而不愿做某事
eg：I prefer to do hard work rather than do nothing at home. 我宁愿干重活而不愿在家无所事事。
10.Its +adj. for sb. to do sth. 做某事对某人来说
eg：Its difficult for women to get jobs in high position. 对妇女来说得到一个高职位的工作是很难的。
11.Its better/best to do sth. 最好做某事
eg：Generally， its better to apply filler materials in thin layers. 一般来说，最好适用于薄层填充材料。
12.It takes sb/sth. to do sth. 某人做某事用了一些时间
eg：It takes some time to cultivate a new friendship. 建立一段新的友谊需要一段时间。