The comparative form of old
older
The comparative form of clean
cleaner
The comparative form of high
higher
George is ________ than Robert. (tall)
taller
dogs / tigers / small
Dogs are smaller than tigers.
The comparative form of long
longer
The comparative form of fast
faster
The comparative form of low
lower
The blue car is _______ than the black car. (nice)
nicer
the library / the bookstore / large
The library is larger than the bookstore.
The comparative form of big
bigger
The comparative form of wide
wider
The comparative form of fat
fatter
Christine is ________ than Alice. (pretty)
prettier
summer / winter / hot
Summer is hotter than winter.
The comparative form of late
later
The comparative form of thin
thinner
The comparative form of far
farther/further
My bedroom is _____ (tidy) than my sister's.
tidier
the red box / the blue box / heavy
The red box is heavier than the blue box.
The blue box is heavier than the red box.
The comparative form of funny
funnier
The comparative form of bad
worse
The comparative form of interesting
more interesting
This cake is _______ (delicious) than that one.
more delicious
tigers / rabbits / dangerous
Tigers are more dangerous than rabbits.