Subject + 想 + Object/Clause
The verb 想 (xiǎng) can express the mental activity of thinking about or considering something. In this usage, it focuses on the cognitive process rather than a desire. For example, 我在想这个问题 means "I am thinking about this problem."
你别打扰我,我在想一个重要的事情。
Nǐ bié dǎrǎo wǒ, wǒ zài xiǎng yī gè zhòngyào de shìqing.
Don't bother me — I'm thinking about something important.
我想了半天也没想出好办法。
Wǒ xiǎng le bàntiān yě méi xiǎng chū hǎo bànfǎ.
I thought about it for a long time but couldn't come up with a good solution.
让我想想怎么跟他解释这件事。
Ràng wǒ xiǎngxiang zěnme gēn tā jiěshì zhè jiàn shì.
Let me think about how to explain this to him.