1. The negative form:
1.1. I, he, she
1.1.1. Wasn't
1.1.1.1. I wasn't in Paris in 2010.
1.1.2. Wasn't
1.1.2.1. You was not that perfect!
1.1.3. Wasn't
1.1.3.1. He was that nice to me>
1.1.4. Wasn't
1.1.4.1. It wasn't as what I imagined.
1.2. You, we, they
1.2.1. Weren't
1.2.1.1. They weren't in Rio last summer.
1.2.2. Weren't
1.2.2.1. You was not that perfect!
1.2.3. Weren't
1.2.3.1. We weren't that bad.
2. The affirmative form:
2.1. I, He, She, It
2.1.1. Was
2.1.1.1. I was in Japan last year.
2.1.2. Was
2.1.2.1. He was amassing in his presentation.
2.1.3. Was
2.1.3.1. She was shy as a child, but now she is very outgoing.
2.1.4. Was
2.1.4.1. It was a beautiful day.
2.2. You, We, They
2.2.1. Were
2.2.1.1. You were a noisy teenager.
2.2.2. Were
2.2.2.1. We were a wonderful team.
2.2.3. Were
2.2.3.1. They were happy together.
3. The interrogative form:
3.1. Were
3.1.1. We
3.1.1.1. Were we studying together?
3.1.2. You
3.1.2.1. Were you in London last year?
3.1.3. They
3.1.3.1. Were they at the beach?
3.2. Was
3.2.1. I
3.2.1.1. Was I convincing?
3.2.2. He
3.2.2.1. Was he on the bus?
3.2.3. She
3.2.3.1. Was she this pretty when you first met?
3.2.4. It
3.2.4.1. Was it a delicious cake?