Add -s or -es
bag
bags
run
running
wave + ed
waved
fry + ed
fried
-ed means
happened in the past
hopper
hop + er
wish
wishes
land
landing
skate + er
skater
try + ing
trying
-ing means
happening now
helpful
help + ful
baby
babies
skip
skipping
sore + ly
sorely
carry + ed
carried
-s / -es means
more than one / does soemthing
madly
mad + ly
potato
potatoes
gallop
galloping
smile + ing
smiling
funny + er
funnier
-ful
full of
braver
brave + er
echo
echoes
sprint
sprinting
care + ful
careful
fortify + ing
fortifying
-er
-someone who / more than
happier
happy + er