1. it is time + 不定式：表达现在该做某事了。
例句1：It is time to make working plans for the new project.
该是为新项目制订事情操持的时候了。
2. it is time for somebody + 不定式：某人该做某事了。
例句2：It is time for me to get my second dose of Covid-19 vaccine.
现在是我注射第二剂新冠疫苗的时候了。
3. it is time + 一样平常过去时从句：表达现在或将来该做某事了。
例句3：It is time you visited your parents.
你该去看望你的父母了。
上句话相称于：It is time for you to visit your parents.
这个构造有两种语气，一种语气较强，一种语气较温和，我们来看一下。
例句4：It is high time you found a job to support your family.
你确实该找一份事情养家了。
用 it is high time 表达了一种很强的语气，在翻译时可译为“确实是时候了”。
例句5：It is about time you got married and settled down.
恐怕你该结婚成家了吧。
用 it is about time 表达了一种很温和的语气，在翻译时可译为“恐怕是时候了”
