什么单词和短语要用have,has+v-ed？

Question

如题所述

Answer 1

have\has+v-ed（过去分词） 现在完成时表示动作发生在过去对现在造成的影响和结果。或动词从过去快速持续到现在形成的影响和结果。
I have had dinner.我已吃过晚饭了。
He has studied English for several years.他已经学英语几年了。