Let me talk about the meaning of this sentence first ~ ~
Spend time doing something means: spend time doing something; Spend time doing something; Take some time.
In fact, the complete sentence pattern is to spend time doing something? This in can be omitted, so the form of doing it will be much clearer after adding this in.
Let's talk about specific usage and examples ~ ~
1, spend time doing something, you can use a phrase composed of spend, and the subject modified by spend can only be people. Take time to do sth. (someone takes time to do something), for example:
I spent three hours doing honey work. I spent three hours thinking about it.
The lack here is the past tense of lack.
2. In English, the correct usage should be to spend time doing it, not to spend time doing it. "Take time to do" means "take time to do …", and there is no such usage as "take time to do". Spend a lot of time doing sth. Spend a lot of time doing sth.
Spend+time/money+do sth. It means "How much time/money does it take to do something?"
For example:
1, take time to do what you want to do! ? Take time to do what you want to do!
They don't need to spend time doing what they have already done. There is no need to waste time repeating what others have already done.
It will take me three hours to finish my homework today. It will take me three hours to finish my homework today.
Expand knowledge:
Spend time on sth. (someone takes time to do something), for example:
Tom spent five hours on this math problem. ? Tom spent five hours working on this math problem.