英语达人,I have had it several times,这句话里面的had是什么?我知道have过去式had,

英语达人,I have had it several times,这句话里面的had是什么?我知道have过去式had, I have had surgery several times because of my bo I have had it. I have had it had的用法!i had be happy这句话什么意思?为什么要用have的过去式? 我拥有我快乐I'm happy because I have had it. 为什么要用过去式? 英语翻译have you had lunch 这是什么时态这里的had是什么意思 have过去式和过去分词是什么 have/had+动词过去式与Did的区别是什么? had i known it ,i would have.. I have had it for so many years 这里的谓语是have had吗 I have had enough I would have liked to have had it when I was a student.这是什么语