后面动词用不定式to do，例如：
1.If you're thinking of getting a new car， now is a good time to buy.你要是想买辆新车的话，现在正是时候。
2.It was time to take stock of the situation.是时候统观一下形势了。
3.This will be a problem for some time to come.这将是未来一段时期里的一个问题。
time后面动词什么形式
time后面动词是ing的形式，例如：They have a good time playing in the park .他们在公园玩的很开心。
