-ed
-ing
-est
100

blot

blotted

100
shop

shopping

100

dark

darkest

200

frost

frosted

200

jump

jumping

200

sad

saddest

300

tilt

tilted

300

chomp

chomping

300

fat

fattest

400

plan

planned

400

skip

skipping

400

cold

coldest

500

chat

chatted

500

rub

rubbing

500

big

biggest

M
e
n
u