has been是被动语态吗?被动语态到底是什么?还有,英语时态好复杂,有没有简单的掌握方法?

have been married 是被动语态吗 he has been there since 1997s是完成时被动语态吗?如果是为什么要用被动语态?不可以说成he has lived th He has been died for ten years这是一句什么句型?是被动语态吗. has been是被动语态吗?被动语态到底是什么?还有,英语时态好复杂,有没有简单的掌握方法? he has been married for three years 句中has been married 是被动语态么? The production of grain has been increased by four times this year.今年粮食产量增加了4倍has been increased 是完成时被动语态吗 为什么需要使用到完成时被动语态：为什么表示增加了4倍就要用被动语态 have been here 是被动语态吗有have been 这个不是被动的意思吗 what has happened to you这不是被动语态吗? The ice has been melted .为什么这个现在完成时要加been,been不是被动语态吗? 什么 是被动语态? 我知道have/has+been+过去分词.是被动语态...那么had+been+过去分词.是被动语态吗?已经被人们所关注。用have/has+been+过去分词好？还是用had+been+过去分词好？ I 've been away from shanghai for3 days是被动语态吗?为什么能用have(has)+been~结构? I 've been away from shanghai for3 days是被动语态吗?为什么能用have(has)+been~结构? 被动语态 被动语态 被动语态 被动语态 被动语态