问一个很简单的英语知识动词的原型过去式和过去分词分别在什么情况下用我对英语什么也不懂

Question

问一个很简单的英语知识
动词的原型 过去式 和过去分词 分别在什么情况下用 我对英语什么也不懂

Answer 1

动词原型一般用在祈使句；一般现在时的复数人称或第一人称；或情态动词can,could,may,need,must等的后面.
如 don't touch me, let's go
I want to come back home. they need some book. I like it.
I can complete it.
过去式用在刚刚发生或过去某个时间点发生的动作
I comleted my homework this afternoon.
过去分词用在现在完成时,过去完成时,以及被动语态,定语修饰中的被动语态等情况下,如：
I have completed my homework.
I had completed my homework before I had dinner.
the baby was taken to my home(by...).
I like this book signed by the author