Ativ. 4 - Plural of Nouns

  1. The general rule for plural formation is an add - S to the singular
 example: book - books; girl - girls; day - days; table - tables

  2. Nouns ending in - o, ch, sh, ss, x, z form the plural by adding the suffix - es
example: hero - heroes; tomato - tomatoes; brush - brushes; wish - wishes

 3. Foreign words or abberviated forms of it are in the plural - S
example: cello - cellos; kilo - kilos; photo - photos; solo - solos

  4. Nouns ending in - y preceded by a consonant, lose - get - ies
example: family - families; lady - ladies; country - countries

 5. The fallowing nouns ending in - f or - fe lose these letters and get - ves
example: half - halves; life - lives; loaf - loaves; shelf - shelves

 6. All other nouns ending in - f or - fe make the plural in - S
example: chief - chiefs; roof - roofs; strife - strifes

  7. Some nouns undergo changes of various kinds
example: child - children; woman - women; tooth - teeth; goose - geese

 [...]