Irregular verbs

Across

2. sing
3. know
6. begin
8. think
9. do
10. pay
11. buy
13. read
14. send
16. come
17. forget
18. speak
19. leave

Down

1. make
4. go
5. find
6. build
7. eat
12. have
13. run
14. sleep
15. catch
17. fall