in or at school

[JoChang]

at/in
Why I can't use in School? Need to use at School.
It's very confuses to write and understand.

 

[JoChang]

What the in/at different?
I always used wrong, in school is wrong?

 

[teechar]

Hello JoChang, and welcome to the forum.

My question is about at/in.
Why can't I use "in school?" I was told that I need to use "at school."
It's very confuses to [STRIKE]write[/STRIKE] use and understand.

What is the [STRIKE]in/at[/STRIKE] difference between "in" and "at"?
I always [STRIKE]used[/STRIKE] get it wrong. Is "in school" [STRIKE]is[/STRIKE] wrong?

The use of prepositions is idiomatic. There is no specific rationale behind it.

The usual preposition is "at" in that context. However, it is possible to use "in school" in certain contexts.

Take a look at the results you get from the sites below.
http://corpus.byu.edu/coca/x.asp?r1=&w=1024&h=600

http://fraze.it/n_search.jsp?q=in+school&l=0


Note also that I have merged your two threads, and changed the title to include keywords from your question.

 

[Tdol]

in school is wrong?

It is not used in most contexts, but it can be used sometimes. You could say that a cleaner works in a school.