Aは、Bじゃありません。/ A is not B

わたしは　がくせい　です。

 

"がくせい/student". This is "AはBです/ A is B." grammer, which we learned already in the previous article. So, this means "I am a student.". Next, let's see the negative sentence.

わたしは　がくせい　じゃありません。

This means "I am not a student.". I just removed "です" at the end, and put "じゃありません" instead. It makes the "A is B" sentence a negative one. "AはBじゃありません。"