1. The children didn't come yesterday.
2. Peter doesn’t speak English fluently.
3. We didn't like the film.
4. Tom didn't receive an explanation from Paula.
5. Grandma didn't cook pasta.
6. Paula didn't meet Sue at the pub.
7. Peter didn't have a birthday party.
8. Mum didn't understand a letter from Terry.
9. We were ill last week.
10. Mr. Smith's son didn't go to school.
11. 16 mistakes were in the sentence.