Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

find found
fly flew
forbade forbidden
forget forgot
freeze frozen
got got / gotten
give gave
go gone
grew grown
hang hung