1. 一般现在时的被动语态：
is/am/are+V-ed。
例如：English is widely spoken all over the world.

2. 一般过去时的被动语态：
was/were+V-ed。
例如：The underground was built five years ago.

3. 一般将来时的被动语态：
①will/shall be+V-ed。
例如：The decision will be made at the meeting tomorrow.
We shall be punished if we break the rule.
②be going to be+V-ed。
例如：The problem is going to be discussed at the meeting tomorrow.
③be to be+V-ed。
例如：The sports meet is to be held on April 20.