I am a teacher.这句话a teacher是表语还是teacher是表语

I am a teacher.这句话a teacher是表语还是teacher是表语 I am a teacher的否定形式 I am a teacher 变为一般疑问句 I am a teacher.(改为复数) Jack or I am a teacher是什么意思 I am a teacher 一般过去时：一般疑问句： I am a teacher 变为否定句 i am a teacher 改为疑问句 英语I am a teacher前一句是什么 I am a boys这句话对吗? I am a teacher的句法结构请问一下这句话是主系表结构还是主谓宾结构? I am a teacher.划线部分提问teacher划线 Are you a teacher?Yes,I'am.Are you a teacher?Yes,I'am. I am a teacher.中,I主语,am谓语,teacher表语,a是什么成分? I am so good a teacher还是I am a so good teacher?哪一个正确?为什么? IF I AM A TEACHER对吗?是WERE还是AM? I am a teacher,_______?的反意疑问句后面应该接什么~比如I am not a teacher ,am I 那么I am a teacher i want to be a teacher用a teacher提问这句话该怎样说