她一定是教书多年了，不是吗的翻译：She must have been taught for many years, do not 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

She must have taught for many years, is not it

She must have been taught for many years, do not

She was certainly teaches many years, not right

She is certainly teach many years, doesn't it?

She must have been taught for many years, do not