The Past Continuous Tense 过去进行时由be动词的过去式was/were加动词现在分词构成。过去进行时主要表示过去某个时刻或过去一段时间正在进行的动作。过去进行时常与表示过去的时间状语如then,at that time, at this time yesterday, a moment ago等连用,或者用另一动作来表示过去的时间。如: It was raining all day yesterday.昨天下了一整天雨。 They were playing basketball at four o'clockyesterday afternoon. 昨天下午4点他们在打篮球。 we were working from seven to eleven last night.我们昨晚从七点工作到九点。