a dog	dogs
a week	weeks
a car	cars
a bed	beds
a year	years
a dress	dresses
a box	boxes
a fox	foxes
a bush	bushes
a bus	buses
a watch	watches
a bridge	bridges
a nose	noses
a horse	horses
a rose	roses
a prize	prizes
a price	prices
a tomato	tomatoes
a potato	potatoes
a hero	heroes
a piano	pianos
a photo	photos
a zero	zeros
a wife	wives
a knife	knives
a shelf	shelves
a wolf	wolves
a loaf	loaves
a life	lives
a half	halves
a thief	thieves
a chief	chiefs
a roof	roofs
a handkerchief	handkerchiefs
a lady	ladies
a city	cities
a country	countries
a story	stories
a fly	flies
a baby	babies
a day	days
a boy	boys
a key	keys
a toy	toys
a man	men
a woman	women
a child	children
a die	dice
a mouse	mice
a foot	feet
a tooth	teeth
a goose	geese
fish	fish
sheep	sheep
species	species
swine	swine
fruit	fruit
crap	crap
trouses	trouses
jeans	jeans
shorts	shorts
scissors	scissors
clothes	clothes
pyjamas	pyjamas
dungarees	dungarees
glasses	glasses
goods	goods
outskirts	outskirts
news	news
physics	physics
politics	politics
statistics	statistics
mathematics	mathematics
aerobics	aerobics
athletics	athletics