Doubling (one syllable)
run + ing
running
forget + ing
forgetting
skate + ing
skating
have + ing
having
love + ed
loved
jump + ed
jumped
plant + ed
planted
bake + ing
baking
make + ing
making
close + est
closest
cram + ing
cramming
cook + ing
cooking
place + ing
placing
rake + ed
raked
use + able
usable
stop + ing
stopping
explain + ed
explained
smile + ing
smiling
drive + ing
driving
large +est
largest
give an example of a suffix
ing
ed
s
suggest + ing
suggesting
dance + ing
dancing
come + ing
coming
like + able
likable