I am a teacher 如何变为否定句

I am a teacher 如何变为否定句 I am a teacher 变为一般疑问句 I am a teacher 变为否定句 问:I'm a teacher如何变为否定和疑问句. 如何把 I am a teacher改否定句 she says,I am a teacher.变为间接引语she says he is a teacher (否定句)下面都是I am a worker (否) I ___ ___ a worker 2.they are singing and dancing they ( ) singing and dancing l am a teacher怎么变为复数形式 I am not a teacher beacher I know the answer.如何翻译,用了什么语法? I am a teacher的否定形式 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 改为疑问句 英语I am a teacher前一句是什么 改为一般疑问句和否定局：I am a doctor. I am a teacher.划线部分提问teacher划线 IF I AM A TEACHER对吗?是WERE还是AM?