I am a student是什么句型?

I am a student是什么句型? I am a student是什么时态 I am a student. i am being a student. I am a good student i am a university student I am a student是什么意思 句型转换啊~同义句1You are a student.I am a student as well.2WE have I am a middle school student意思是什么? I am a student的特殊疑问句是什么 I am student 和 I am a student I am a student.对还是I am student.