Match each tense form with the situation(s) of it use.
A) for a past activity beginning before a past event and continuing until or after it. For the event we use ‘when’ + the past simple
b)for completed actions, events and situations in the past
c)to talk about something that happened before a past event. In sentences that have ‘when’ + past simple, to show that one event happened before the other.
d)for an unfinished activity around a time in the past
1.Past Simple
2.Past Continuous
3.Past Perfect
