My mother is a teacher 改为否定句是什么?

My mother is a teacher 改为否定句是什么? his mother is teacher [改为否定句] My English teacher is a woman.改为否定句 my father is a teacher.改为否定句 My sister is a teacher.(改为否定句) My sister _______ a teacher. He iS a teacher.改为否定句 She is a teacher.(改为否定句 I think MY Father and MY Mother is a good movie 改为否定句 my mother is form shanghai（改为否定句） this is my mother（改为一般疑问句, My mother is cooking now.改为否定句 my teacher is drawing on the blackboard改为否定句 my math teacher is tall and thin改为否定句