PAST TENSE

The definition of simple past tense:
The simple past tense is used to talk about activities or situations
that began and ended in the past.
-> Frequency adverbs:
- Last year
- yesterday
- a moment ago
- some minutes ago
- two day
- last month
- last week
- last day
- some hour ago, etc.
-> Form of simple past tense:

Statement	Question
S + V2 + …. S + tobe (was/were) + …..	Did + S +V1
Negative	Short answer
S + didn’t + V1 + ….. S + wasn’t/weren’t	Yes, I did No, I didn’t

-> For example:
(+) Morae sang in her class yesterday.
(-) Morae wasn’t sing in her class yesterday.
(?) Was Morae sing in her class yesterday?