Many singular nouns are pluralised by simply adding -s, but there are a number of exceptions.
A plural noun is used when there is more than one of something.
Nouns ending in -ch, -sh, -x and -ss usually add -es. For example:
church / churches
box / boxes
Irregular plural nouns are nouns that do not become plural by adding -s or -es, as most nouns in the English language do.
Nouns ending in -y usually change to -ies, unless there is a vowel before the -y. For example:
fairy / fairies
donkey / donkeys
Nouns ending in -f or -fe usually change to -ves. For example:
shelf / shelves
wife / wives
Some nouns change in different ways or don't change at all!
child / children
foot / feet
sheep / sheep
In the following questions, you will be able to make singular nouns into the plural version by following the above rules.