He teaches us English/He teaches our English哪个对为什么？
(Source: Zhihu)
(answered by: alexcwlin; edited by: Adam Lam)

Question: 我认为是he teaches our english 应该对，但是答案不是。我的理解是our 作english的定语。麻烦大神解释，指点迷津。比如He is our english teacher.多谢

Both are correct.

In both sentence, “He’ is the Subject and “teaches” is the Verb.

In “He teaches us English”, “us” is the Direct Noun Object, and “English” is the Indirect Noun Object.

In “He teachers our English”, “our” is Adjective and “English” is the “Object Noun”.

Therefore both sentences are grammatically and structurally correct.