怎么区别has have had用法?

怎么区别has have had用法? have、had、has的区别与用法是什么?如题, have has had或 having +been 的区别和用法 have,has,had 用法告诉下吧... had和has用法上的区别 请问HAS BEEN和 HAVE BEEN HAD BEEN的用法以及分别加DONE后的用法请问HAD BEEN 单复数用法有区别吗 求have,has,had的区别? has、have的区别与用法 have和has的用法及区别 has have with怎样区别?怎样用法? have has的用法和区别 HAs HAD 和HAVE HAD区别HAVE HAD 和HAS HADE have、had、has的区别与用法是什么?我做英语考试题的时候时候老师把have、had、has混乱 例如 he 是第三人称单数 如果说一个过去式就变成he had?不能用has? had were has have的用法有何不同? 求问have has had的用法~谢谢~ 英语助动词的用法has 跟 have did 跟 does这些怎么区别怎么用? has had 得区别及用法,希望详细且易懂! have和has的用法?怎么区分``