Regular
-aught
change a vowel
irregular
irregular
100

play

played

100

catch

caught

100

write

wrote

100

see

saw

100

say

said

200

call

called

200

teach

taught

200

drink

drank

200

do

did

200

have

had

300

fail

failed

300

think

thought

300

ring

rang

300

leave

left

300

lose

lost

400

dry

dried

400

fight

fought

400

give

gave

400

feel

felt

400

eat

ate

500

save

saved

500

buy

bought

500

draw

drew

500

sleep

slept

500

be (is/am/are)

was/were