Irregular plurals: sheep → sheep (same!) · fish → fish (usually) · mouse → mice. Most animals just add -s: cat → cats, dog → dogs, horse → horses.

Exercise 1 — What animal is this?

Look at the picture and choose the correct answer. Answer all 5 to unlock the next set.


Exercise 2 — Write the plural of these animals

These animals have irregular plurals.

buffalo
cuttlefish
deer
elk
fish
flying fish
goldfish
goose
jellyfish
koi fish
krill
moose
mouse
ox
pufferfish
red deer
roe deer
salmon
sheep
shrimp
squid
starfish
swordfish
tuna
water buffalo