past imperfect tense

名词 n.

英文释义

名词 n.
  1. A grammatical tense which expresses the past as an action which was still going on at the point in time described, say someone "was ...ing" something, as opposed to the already accomplished counterpart past perfect tense (where the action took place even further in the past) uncountable,usually

词形变化

past imperfect tenses plural
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