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匿名
发表于 2012-3-4 12:22:44
这个句子前后应该有个过去式的句子在说明它。
Past Perfect
USE 1 Completed Action Before Something in the Past
USE 2 Duration Before Something in the Past (Non-Continuous Verbs)
Past Perfect Continuous
USE 1 Duration Before Something in the Past
USE 2 Cause of Something in the Past
我们老师特别强调
过去完成式跟过去完成进行式是发生在「过去的过去」
绝对不会单独成立,一定要有个过去的时点来说明这个「过去的过去」。
ep: Someone had been watering the milk before I arrived.
Someone had been watered the milk before I arrived.
一般很容易错,不是很清楚的话别乱用。
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