think的过去式和过去分词是什么

think的过去式：thought；第三人称单数现在时：thinks；现在分词：thinking；过去分词：thought。

例句：

1、I certainly think there should be a ban on tobacco advertising、

我确实认为应该禁止香烟广告。

2、Nora thought he was seventeen years old、

诺拉觉得他有17岁。

3、You were probably brought up to think like that、

你可能从小就被教育那样考虑问题。