Nouns Number

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A singular noun stands for one person, animal, place, or thing. For example: 'cat', 'book', 'tree'. We use singular nouns when talking about just one of something.

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A plural noun stands for more than one person, animal, place, or thing. For example: 'cats', 'books', 'trees'. We use plural nouns when talking about two or more of something.

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1. Pen → Pens 2. Dog → Dogs We add -s to most nouns to make them plural.

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We usually add -s to the end of a singular noun to make it plural. For example: ball → balls, tree → trees, book → books.

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Nouns ending in s, ss, sh, ch, or x form their plural by adding -es. For example: bus → buses, brush → brushes, box → boxes.

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Because 'bus' ends with the 's' sound. When a noun ends in s, ss, sh, ch, or x, we add -es to make it plural. So, 'bus' becomes 'buses'.

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Some nouns ending in 'o' take -es: buffalo → buffaloes, hero → heroes, potato → potatoes, mosquito → mosquitoes.

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No. Some nouns ending in 'o' just add -s. For example: photo → photos, piano → pianos, radio → radios.