Past Progressive or Past Continuous

Signal words	Use	Form	Examples affirmative	Examples negative	Examples interrogative
while	an action happened in the middle of another action someone was doing sth. at a certain time (in the past) - you do not know whether it was finished or not	was/were + infinitive + -ing	I was working.	I wasn't working.	Was I working?
			He was working.	He wasn't working.	Was he working?
			I was going.	I wasn't going.	Was I going?
			He was going.	He wasn't going.	Was he going?