摘要：表示与现在事实相反的情况时, if从句的谓语用动词的过去式 (be动词的过去式多用were, 而不用was), 主句的谓语用should / would / could / might +动词原形 (should多用于第一人称, would多用于二三人称, could / might可用于所有人称) a. If I had more time, I should study computer better. b. If he were not so busy, she would attend the meeting this afternoon. c. If they didn’t take exercises every day, they wouldn’t be so healthy. d. If you went to bed earlier, you would not be so sleepy in the morning. e. If she invited me, I should go to the party.

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