【过去将来时】
 1. 基本结构
肯定句：主语＋be(was, were)going to＋动词原形＋其他
或：主语＋would(should或would)＋动词原形＋其他
或：was/were＋动词不定式
否定句：主语＋be not(was not, were  not)going to＋动词原形＋其他
或：主语＋would(should或could)not＋动词原形＋其他
或：be not(was  not, were  not)＋动词不定式
疑问句：Be(Was, Were)＋主语＋going to＋动词原形＋其他？
或：Would(Should或could)＋主语＋动词原形＋其他？
 2. 用法
(1) 表示从过去某一时间看将来要发生的动作或存在状态。常用在宾语从句中，由“would＋动词原形”构成。
如：He asked me when he would see me again.
他问我他将什么时候能再见到我。
He said he would buy some fruit for his sister. 他说他要给他妹妹买些水果。
(2) 表示曾经打算或准备要做的动作，用“was/were going to＋动词原形”。
如：She said she was going to see me the next day.
她说她第二天将会来看我。
(3) go, come, leave, arrive, start等动词，其过去进行时表示过去按计划即将发生的动作。
如：He said he was coming this evening. 他说过他今天晚上来。