buy ..... .......
buy bought bought
come ..... .......
come came come
........ drank drunk
drink drank drunk
eat ....... eaten
eat ate eaten
...... went gone
go went gone
read ....... ..........
read read read
run ran .....
run ran run
sing ...... .......
sing sang sung
....... sat sat
sit sat sat
write ...... .......
write wrote written
......... sold sold
sell sold sold
