think后面加doing不加do，意为“认为……”、“觉得……”。think可作动词和名词，意思有认为、以为、想、思考、想法等，后面可接介词about/of，固定搭配有think about doing sth，意为考虑做某事，think of doing sth ，意为打算做某事。
think的基本含义及用法介绍
1、可作动词，意为认为;以为;想;思考;思索;思想;琢磨。后面可接介词about/of。
例句：Do you think (that) they'll come?
你认为他们会来吗？
We'll need about 20 chairs, I should think .
我看我们需要大约20把椅子。
She had thought very deeply about this problem.
她曾经对这个问题深深思考过。
You're very quiet. What are you thinking?
你一声不吭，在想什么？
We couldn't think where you'd gone.
我们猜想不出来你到哪里去了。
The job took longer than we thought.
这项工作用的时间比我们预想的多。
If you want to make money, you've got to think money.
你要想赚钱，就得一门心思琢磨钱。
I thought we could go out tonight.
我本想我们今晚可以出去。
2、可作名词，意为想、想法。
例句：I think the same as you do about this.
在这件事上，我的想法和你一样。
He'll never come round to our way of thinking.
他绝不会改变观点与我们的想法一致。
We finally managed to talk them round to our way of thinking.
我们最后总算说服他们接受我们的想法。
