現在進行時的被動語態(tài)：
承受者+be（is/am/are）being（現在分詞）done by+執(zhí)行者（不明確可省略）。
E.g. 主動：He is writing his composition.
被動：His composition is being written by him.
Note：write/wrote/wtitten
過去進行時的被動語態(tài)：
承受者+be （was/were）being（現在分詞）done by+執(zhí)行者（不明確可省略）。
E.g. 主動：He was majoring computer during his college.
被動：Computer was being majored by him during his college.
將來時的被動語態(tài)：
承受者+be going to/will/shall（be動詞原形）/be to be done by+執(zhí)行者（不明確時可省略）。
E.g.1 A big supermarket will/shall/be to be built here next year
Note ：be to ：計劃或安排好的動作或行為。
E.g.2 The flight is to leave for Hefei city.
承受者+be（is/am/are）being（現在分詞）done by+執(zhí)行者（不明確可省略）。
E.g. 主動：He is writing his composition.
被動：His composition is being written by him.
Note：write/wrote/wtitten
過去進行時的被動語態(tài)：
承受者+be （was/were）being（現在分詞）done by+執(zhí)行者（不明確可省略）。
E.g. 主動：He was majoring computer during his college.
被動：Computer was being majored by him during his college.
將來時的被動語態(tài)：
承受者+be going to/will/shall（be動詞原形）/be to be done by+執(zhí)行者（不明確時可省略）。
E.g.1 A big supermarket will/shall/be to be built here next year
Note ：be to ：計劃或安排好的動作或行為。
E.g.2 The flight is to leave for Hefei city.