A third example is when you're pondering something. Maybe you haven't quiet made up your mind,

第三种情况是，当你在思考一些事的时候，你可能还没有完全想好。

I think 课堂 - SpeakingMax英语口语达人

Or you can use it to express something that you've been pondering,

I think”句型也可以用来表示一些你在思考的事情，

I think 课堂 - SpeakingMax英语口语达人