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