Past Simple signal words

Grammar explanations Past Simple diagram
Past Simple forms
Past Simple use
Past Simple spelling
Past Simple signal words
Past Simple pronunciation
Exercises Past Simple

Simple Past Tense is used with the words listed below. It isn't always necessary to use these words if it is clear from the situation which tense should be used.

adverbs: yesterday, last summer, last week, last month, etc.
questions about the past when
expressions with prepositions at 4 o'clock, on Monday, in July etc.
adverbial clauses till he arrived / when I was at college