Plural and singular nouns

Plural and singular nouns

Nouns give names of concrete or abstract things in our lives. They have singular and plural forms.
Read the following explanation in the table about singular nouns.

Singular nouns. Indefinite article

Use with singular nouns

Using an and a depends on the pronunciation of the next word. In most cases though, an is used before words that begin with vowels (a, e, i, o u). For example:

      an apple
      an elephant
      an igloo
      an orange
      an umbrella

    If a word starts with a consonant sound, use a.

        a ball
        a car
        a doll

      Vowel sounds

      It is very important to know that when a word starts with a vowel sound, you should use an. Sometimes u is pronounced as y. For example:

             an unforgettable experience - unforgettable has a vowel sound so we use an.
            a university - university has a y sound so we use a.

        This is also the case with o, which may sometimes have a w sound. Compare:

              an octopus - octopus starts with a vowel sound.
              a one track mind - one-track starts has a w sound.

          Plural of nouns

          Read the rules to form the plural of nouns. Click on the icon to listen to the pronunciation.

          For the plural form of most nouns, add s.

            bottle   bottles
            cup   cups
            pencil   pencils
            desk   desks
            sticker   stickers
            window   windows

          For nouns that end in ch, x, s, or s sounds, add es.

            box   boxes
            watch   watches
            moss   mosses
            bus   buses

          For nouns ending in f or fe, change f to v and add es.

            wolf   wolves
            wife   wives
            leaf   leaves
            life   lives

          Some nouns have different plural forms. They are irregular nouns.

            child   children
            woman   women
            man   men
            mouse   mice
            goose   geese

          Nouns ending in vowels like y or o do not have definite rules.

            baby   babies
            toy   toys
            kidney   kidneys
            potato   potatoes
            memo   memos
            stereo   stereos

          A few nouns have the same singular and plural forms.

            sheep   sheep
            deer   deer
            series   series
            species   species

          Writing exercice

           Part 1. Look at the words and choose a or an. Part 2. Look at the singular nouns and write the plural.  

          Parte 1. Observa las palabras y elige el artículo a / an según corresponda. Parte 2. Observa los sustantivos en singular y escríbelos en plural.

            Part 1

          1.  eraser

          An eraser

          2.  laptop

          A laptop

          3.  classroom

          A classroom

          4.  apple

          An apple

          5.  exam

          An exam

          6.  project

          A project

          7.  chair

          A chair

          8.  desk

          A desk
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            Part 2

          1. woman

          women

          2. teacher

          teachers

          3. life  

          lives

          4. sheep

          sheep

          5. window

          windows

          6. potato

          potatoes
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