I (be) in Tokyo last spring.
I was not/wasn't in Tokyo last spring.
We (be) at school last Saturday.
We were not/weren't at school last Saturday.
Robert and Stan (be) Garry's friends.
Robert and Stan were not/weren't Garry's friends.
She (be) in South Africa last month.
She was not/wasn't in South Africa last month.
Jessica and Kimberly (be) late for school.
Jessica and Kimberly were not/weren't late for school.
Tina (be) at home yesterday.
Tina was not/wasn't at home yesterday.
