Spelling rules
1.Make the plurals of most nouns by simply adding-s to the end.
Ex-Book-books
Journey-Journeys
2.If the noun ends with a consonant plus-y make the plural by changing the –y to-ies.
Ex-Berry-berries
3.If the noun ends with –ch,s,sh,x,or z add-es to make the plural.
Ex-Church-churches
Bus-buses
Box-boxes
But if the-ch ending is pronounced-k,then just make the plural by adding –s.Ex-Stomach-stomachs
4.For nouns which end in a consonant or a single vowel plus-f or fe make the plural by changing the f or fe to-ves.
Ex-Half-halves
Knife-knives
5.Nouns ending in two vowels –f usually form plurals in the normal way with-s.
Ex– chief-chiefs
6.Nouns ending in-o can add either-s or -es in the plural.
7.Nouns which end in-s usually come from Latin;the plurals of these are made by changing the-is to –es.
Ex-Crisis-crises
Neurosis-neuroses