6. write down 3 forms of the irregular verbs: 1) to see 2) to let 3) to make 4) to read 5) to know 6) to speak 7) to send 8) to leave 9) to buy 10) to sell

1 to see saw seen
2 to let let let
3 to make made made
4 to read read read
5 to know knew known
6 to speak spoke spoken
7 to send sent sent
8 to leave left left
9 to buy bought bought
10 to sell sold sold