什麼是英語被動語態?

英語被動語態的形式是什麼

(1) 一般現在時：am /is /are +及物動詞的過去分詞；

例：I am asked to the party today.

(2) 一般過去時：was /were+及物動詞的過去分詞；

例：I was asked to the party last night.

(3) 現在進行時：am /is /are being +及物動詞的過去分詞；

例：I am being asked to the party today.

(4) 過去進行時：was /were being +及物動詞的過去分詞；

例：I was being asked to the party that time.

(5)一般將來時：助動詞will +be +及物動詞的過去分詞；

或：am /is /are going to +be +及物動詞的過去分詞；

例：I will be asked to the party tomorrow.

例：I am going to be asked to the party tomorrow.

(6)過去將來時：助動詞would +be +及物動詞的過去分詞；

或：was /were going to +be +及物動詞的過去分詞；

例：I would be asked to the party the next day.

例：I was going to be asked to the party the next day.

(7)現在完成時：助動詞has /have +been +及物動詞的過去分詞；

例：I has been asked to the party today.

(8) 過去完成時：助動詞had +been +及物動詞的過去分詞；

例：I had been asked to the party the day before.

另外,含有情態動詞的被動語態構成為：情態動詞+助動詞be +及物動詞的過去分詞.

例：I may be asked to the party today.

什麼時候英語用被動語態？？

用主動還是用被動，主語是看主語和謂語動詞的關係，

如果主語就是動作的發出者，就用主動。

如果主語是動詞作用的對象，就用被動。

清楚了嗎？