Simple Past or Past Simple

Signal words	Use	Form	Examples affirmative	Examples negative	Examples interrogative
last ... ... ago in 1990 yesterday	action took place in the past, mostly connected with an expression of time (no connection to the present)	regular: infinitive + -ed irregular: 2nd column of table of irregular verbs	I worked.	I didn't work.	Did I work?
			He worked.	He didn't work.	Did he work?
			I went.	I didn't go.	Did I go?
			He went.	He didn't go.	Did he go?