past simple: past actions which happened one after the other (sequence of actions), past habit or state, complete action or event which happened at a stated past time, action which happened at a definite past time although the time is not mentioned (this action is not connected with the present), past continuous: action in the middle of happening at a stated past time, past action in progress interrupted by another past action. (the longer action is in the Past Continuous, the shorter action is in the Past Simple), two or more simultaneous past actions, background (description to events in a story), past perfect: past action which occurred before another action or before a stated past time, complete past action which had visible results in the past, the past equivalent of the Present Perfect, past perfect continuous: the Past Perfect Cont. is the past equivalent of the Present Perfect Continuous, action continuing over a period up to a specific time in the past S, past action of certain duration which had visible results in the past,

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