• We use the past simple of the verb to be to talk about situations and states in the past.
- I was at home yesterday.
- He was with his sister last Saturday.
- They were happy yesterday.
• We use 'was' for I, he, she and it (singular).
• We use 'were' for you, we and they (plural).
- I was tired this morning.
- You were at home yesterday.
- It was sunny last week.
- They were in France last weekend.
• For negatives forms, we use 'not'. We can contract not and the verb, especially when we're speaking: 'wasn't/weren't'
- I was not late for work this morning.
= I wasn't late for work this morning.
- He was not at home yesterday.
= He wasn't at home yesterday.
- We were nothappy yesterday.
= We weren't happy yesterday.
• For questions forms, we change the order of 'was' or 'were' and the person = Was/Were + subject + ?
- Were you tired this morning? Yes, I was.
- Was he at the home last week? No, he wasn't.
- Where was he yesterday?