i think后可以加动词过去式吗

i think后面的动词跟实义动词的ing形式或动词不定式。动词是一类词性，一般用来表示动作或状态的词汇。在英语中，动词按作用和功能主要分为两大类，一类是谓语动词，另一类是非谓语动词。

think后面加宾语从句比较多见.

I think you are stupid.

I think I was wrong.

可以加状语，如I think so.I think badly，I think hard.

可以跟that的宾语从句，一般表达比较复杂意义的时候用.

如：I think that the TV was plugged incorrectly and that is why no signal was recieved.