短语
过去进行式
Past Continuous Tense
;
preterite progressive
过去进行时的形式
Forms of the Past Progressive
过去完成进行式
past perfect continuous
;
preterite perfect progressive
过去将来进行式
future preterite progressive
;
past future continuous
过去将来完成进行式
future preterite perfect progressive
;
past future perfect continuous