句型1:If +主語+過去時,主語+ should (could, would, 或might) +動詞原形
句型2 : If +主語+had+過去分詞,主語+ should(could, would, 或might)+ have +過去分詞
句型3:If +主語+過去時/ should +動詞原形/ were to+動詞原形,主語+ should (could, would, 或might) +動詞原形
句型4:主語+(should)+動詞原形
句型5:wish後的賓語從句
與現在願望不一致:主語+過去時;
與過去願望不一致:主語+ had +過去分詞/ could + have+過去分詞;
與未來願望不一致:主語+ would / could +動詞原形。如:
句型6: It’s time句型(當It’s time後用that從句時應該為“主語+ should +動詞原形”或“主語+過去時”)
It’s time that you went / should go to school.
句型7:If only引起的感嘆句相當於“How I wish +賓語從句”
句型8:would rather, as if(though)引導的句子也需使用虛擬,表示過去的情況用過去完成時,表示現在與將來的情況用過去時。
句型9:without, but, but for, but that, otherwise引起的短語或句子常暗含著虛擬條件。
句型10:If it were not for ... / If it hadn’t been for ... (要不是因為……),其後面的主句也需使用虛擬。
句型1:If +主語+過去時,主語+ should (could, would, 或might) +動詞原形
句型2 : If +主語+had+過去分詞,主語+ should(could, would, 或might)+ have +過去分詞
句型3:If +主語+過去時/ should +動詞原形/ were to+動詞原形,主語+ should (could, would, 或might) +動詞原形
句型4:主語+(should)+動詞原形
句型5:wish後的賓語從句
與現在願望不一致:主語+過去時;
與過去願望不一致:主語+ had +過去分詞/ could + have+過去分詞;
與未來願望不一致:主語+ would / could +動詞原形。如:
句型6: It’s time句型(當It’s time後用that從句時應該為“主語+ should +動詞原形”或“主語+過去時”)
It’s time that you went / should go to school.
句型7:If only引起的感嘆句相當於“How I wish +賓語從句”
句型8:would rather, as if(though)引導的句子也需使用虛擬,表示過去的情況用過去完成時,表示現在與將來的情況用過去時。
句型9:without, but, but for, but that, otherwise引起的短語或句子常暗含著虛擬條件。
句型10:If it were not for ... / If it hadn’t been for ... (要不是因為……),其後面的主句也需使用虛擬。