maybe he is a teacher改为否定句怎么改?

maybe he is a teacher改为否定句怎么改? He iS a teacher.改为否定句 He is a man teacher改为复数句怎么改? This is my teacher.(改为否定句）怎么改? Maybe he is a teacher同义句 He is my brother改为否定句怎么改? She is a teacher怎么改否定句 HE HAS A NEW PEN.改为否定句怎么改? He has a volleyball.改为否定句怎么改? She is a teacher.(改为否定句 He is a teacher.改为同义句 He is a boy改否定句