He always helps his mother cook dinner 如果改成否定形式怎么改,helps要不要改成原型?
问题描述：
He always helps his mother cook dinner 如果改成否定形式怎么改,helps要不要改成原型?
答
He doesn`t always help his mother cook dinner.
单数第三人称已经在 助动词does 那体现了 所以 help 变成原形就好了。：）
答
he never helps his......就这样啦
答
He doesn't always help his mother cook dinner .。或者He never helps his mother cook dinner 。第一句，否定后的动词要变为原型。
答
He never helps his mother cook dinner.
答
He never helps his mother cook dinner.(never 是个否定副词,所以helps不需要变形）