wish后宾语从句用虚拟语气,其谓语部分有时态变化：表示对现在情况珠虚拟时,动词用一般过去时(如did)；对过去的情况进行虚拟时,动词用“过去完成时(如had done)或情态动词的过去时 + 动词的现在完成时(如could have done)”形式；表示情况的虚拟时,用“情态动词的过去时形式 + 动词原形(如might do).”
I wish I had been to the concert last night.
I wish he would forgive me.
I wish I would remember all the English words in a week.
同例：在as if /as though引导的状语从句中和以 if only引起的感叹句中,谓语动词与wish引导的宾语从句中的虚拟形式相同.例：
He talked as if he had known Tom for a long time.
He talks as if he were the boss.他说起话来就像他是老板.