1. you were in bad mood.
 you weren't in bad mood.
2. we were in the football team .
we weren't in the football team .
3.she was tired after the match.
she wasn't tired after the match.
4. They were excited about the holiday
They weren't excited about the holiday.
. 5. He was very helpful and generous.
He wasn't very helpful and generous.
6.It was one of his silly mistakes.
.It wasn't one of his silly mistakes
7.That man was very Rick last year.
That man wasn't very Rick last year.
8.The dog were healthy yesterday.
The dog weren't healthy yesterday.
9.Beck was at the dentists' some hours ago.
Beck wasn't at the dentists' some hours ago.
10.Adam and Henry were at the park a few minutes ago. 
Adam and Henry weren't at the park a few minutes ago.