Plural of nouns

The vast majority of Spanish nouns form their plural in one of the following three ways: Method Main type of noun Example of plural Add -s Ending in an unstressed vowel Many foreign words ending in a consonant las casas los chalets los shows Add -es Spanish (not foreign) nouns ending in a consonant other than -s Nouns ending in a stressed vowel + -s Many nouns ending in a stressed vowel las flores los ingleses los iranees No change Nouns already ending with an unstressed vowel + -s Families (people or things) las crisis los virus los Blanco los Ford