问题描述：
虚拟语气中,是否可以说：If she would have told him,he would have left before 5 o'clock.
是的,我知道语法中说：
If she had told him,he would have left before 5 o'clock.
但我找不到是否可以用If + would have 的情况,
是的,我知道语法中说：
If she had told him,he would have left before 5 o'clock.
但我找不到是否可以用If + would have 的情况,
问题解答：
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