They were nice friends 20 years ago.
They weren't nice friends 20 years ago.
Ken was cool last year.
Ken wasn't cool last year.
You were free yesterday.
You weren't free yesterday.
I was happy yesterday.
I wasn't happy yesterday.
You were sleepy yesterday.
You weren't sleepy yesterday.
I was in Japan last week.
I wasn't in Japan last week.
We were friends 10 years ago.
We weren't friends 10 years ago.
I was in China last week.
I wasn't in China last week,
She was a teacher 20 years ago.
She wasn't a teacher 20 years ago.
It was sunny this morning.
It wasn't sunny this morning.
They were in Korea last month.
They weren't in Korea last month.
It was windy last night.
It wasn't windy last night.
He was in the baseball club last year.
He wasn't in the baseball club last year.
It was snowy last week.
It wasn't snowy last week.
He was 12 years old last year.
He wasn't 12 years old last year.
We were singers 30 years ago.
We weren't singers 30 years ago.
She was busy last night.
She wasn't busy last night.
Ken and Taro were at school last night.
Ken and Taro weren't at school last night.