Singular and Plural Nouns – English Grammar Exercises for A1
Choose the correct option (A, B, or C) to complete each sentence.
1 I live in a big house, and I have one ______ to guard the yard.
(a) dogs
(b) dog
(c) doges
2 My neighbor is very nice. She has two beautiful ______ sleeping on her sofa.
(a) cat
(b) cates
(c) cats
3 In my bedroom, I keep three small ______ in a comfortable cage.
(a) birds
(b) birdes
(c) bird
4 My younger brother loves animals. He has four white ______.
(a) rabbit
(b) rabbits
(c) rabbites
5 I only have one ______, but he talks to me all day long!
(a) parrots
(b) parrot
(c) a parrot
6 My dog just had babies! Now I have five little ______ in my living room.
(a) puppys
(b) puppy
(c) puppies
7 I bought some new plastic ______ for my cats to play with.
(a) toys
(b) toy
(c) toies
8 To keep my dogs clean, I use two special ______ every week.
(a) brush
(b) brushes
(c) brushs
9 I also have a small garden pond with three green ______.
(a) frogs
(b) frog
(c) froges
10 My yellow bird is a canary. My friend has two ______ in her house, too.
(a) canaries
(b) canary
(c) canarys
11 We need to buy more food because we have many ______ to feed.
(a) animales
(b) animals
(c) animal
12 I keep my cute hamsters in two large glass ______.
(a) boxs
(b) boxes
(c) box
13 Do you want to see my pet iguana? He loves eating fresh ______.
(a) leaves
(b) leaf
(c) leafs
14 The pet store near my house sells many kinds of animal ______.
(a) cages
(b) cageses
(c) cage
15 Look at my big aquarium! I have ten colorful tropical ______.
(a) fishes
(b) fish
(c) fishs
16 My sister is not afraid of rodents. She keeps two white ______ as pets.
(a) mouse
(b) mouses
(c) mice
17 Every morning, the local ______ come to my garden to look at my pets.
(a) children
(b) childs
(c) childrens
18 My uncle lives on a farm, and he has three pet ______ that follow him everywhere.
(a) sheeps
(b) sheep
(c) sheepes
19 I have a small round bowl with two orange ______ swimming inside.
(a) goldfish
(b) goldfishes
(c) goldfishs
20 My friend has a very strange pet. He keeps two large ______ in his backyard!
(a) gooses
(b) goose
(c) geese
ANSWER KEY & EXPLANATIONS
1 (b) dog
Explanation: – Correct (Key): (b) ‘Dog’ is the correct singular form, matching the number “one”.
- Common Mistake: (a) ‘Dogs’ is plural, which contradicts “one”.
- Structural Error: (c) ‘Doges’ is a spelling mistake (unless referring to the internet meme, which is grammatically incorrect here).
2 (c) cats
Explanation: – Correct (Key): (c) ‘Cats’ is the regular plural form of ‘cat’.
- Common Mistake: (a) ‘Cat’ is singular, but “two” requires a plural noun.
- Structural Error: (b) ‘Cates’ is an incorrect spelling. We only add “-s”.
3 (a) birds
Explanation: – Correct (Key): (a) ‘Birds’ is the correct regular plural.
- Common Mistake: (c) ‘Bird’ is singular, ignoring the number “three”.
- Structural Error: (b) ‘Birdes’ is a spelling mistake.
4 (b) rabbits
Explanation: – Correct (Key): (b) ‘Rabbits’ is the plural form of ‘rabbit’.
- Common Mistake: (a) ‘Rabbit’ is singular.
- Structural Error: (c) ‘Rabbites’ is an incorrect spelling.
5 (b) parrot
Explanation: – Correct (Key): (b) ‘Parrot’ is singular, matching “one”.
- Common Mistake: (a) ‘Parrots’ is plural.
- Structural Error: (c) ‘A parrot’ creates a double determiner error (“one a parrot” is grammatically wrong).
6 (c) puppies
Explanation: – Correct (Key): (c) ‘Puppies’. Because ‘puppy’ ends in a consonant + y (p-y), we drop the ‘y’ and add “-ies”.
- Common Mistake: (a) ‘Puppys’ is a very common spelling error where learners forget to change the ‘y’ to ‘i’.
- Structural Error: (b) ‘Puppy’ is singular.
7 (a) toys
Explanation: – Correct (Key): (a) ‘Toys’. Because ‘toy’ ends in a vowel + y (o-y), we simply add “-s”.
- Common Mistake: (c) ‘Toies’ is a spelling error. Learners often over-apply the “-ies” rule to vowel+y words.
- Structural Error: (b) ‘Toy’ is singular.
8 (b) brushes
Explanation: – Correct (Key): (b) ‘Brushes’. Nouns ending in “-sh” require “-es” to form the plural.
- Common Mistake: (c) ‘Brushs’ is an incorrect spelling because it’s impossible to pronounce without the “e”.
- Structural Error: (a) ‘Brush’ is singular.
9 (a) frogs
Explanation: – Correct (Key): (a) ‘Frogs’ is the correct regular plural.
- Common Mistake: (b) ‘Frog’ is singular.
- Structural Error: (c) ‘Froges’ is an incorrect spelling.
10 (a) canaries
Explanation: – Correct (Key): (a) ‘Canaries’. Similar to ‘puppy’, ‘canary’ ends in a consonant + y (r-y), so we change ‘y’ to ‘i’ and add “-es”.
- Common Mistake: (c) ‘Canarys’ is a spelling mistake.
- Structural Error: (b) ‘Canary’ is singular.
11 (b) animals
Explanation: – Correct (Key): (b) ‘Animals’ is the correct plural form matching the word “many”.
- Common Mistake: (c) ‘Animal’ is singular.
- Structural Error: (a) ‘Animales’ is a spelling mistake (often influenced by Spanish/French rules).
12 (b) boxes
Explanation: – Correct (Key): (b) ‘Boxes’. Nouns ending in “-x” require “-es” to become plural.
- Common Mistake: (a) ‘Boxs’ is a spelling error.
- Structural Error: (c) ‘Box’ is singular.
13 (a) leaves
Explanation: – Correct (Key): (a) ‘Leaves’. For most words ending in “-f”, we change the ‘f’ to ‘v’ and add “-es”.
- Common Mistake: (c) ‘Leafs’ is a common mistake where learners simply add “-s”.
- Structural Error: (b) ‘Leaf’ is singular, but “fresh” implies an uncountable or plural amount here.
14 (a) cages
Explanation: – Correct (Key): (a) ‘Cages’ is the correct plural. Since ‘cage’ already ends in an “e”, we just add “-s”.
- Common Mistake: (c) ‘Cage’ is singular.
- Structural Error: (b) ‘Cageses’ is a double plural mistake.
15 (b) fish
Explanation: – Correct (Key): (b) ‘Fish’ is an irregular noun that stays the same in both singular and plural forms when talking about the same species of animals.
- Common Mistake: (a) ‘Fishes’ is usually incorrect in everyday A1 English (it is only used by scientists to describe different species of fish, not a group of pet fish).
- Structural Error: (c) ‘Fishs’ is a spelling error.
16 (c) mice
Explanation: – Correct (Key): (c) ‘Mice’ is the completely irregular plural form of ‘mouse’.
- Common Mistake: (b) ‘Mouses’ is an incorrect regularized form (only used for computer mouses, not the animal).
- Structural Error: (a) ‘Mouse’ is singular.
17 (a) children
Explanation: – Correct (Key): (a) ‘Children’ is the irregular plural form of ‘child’.
- Common Mistake: (c) ‘Childrens’ is a double plural error.
- Structural Error: (b) ‘Childs’ is an incorrect regularized plural.
18 (b) sheep
Explanation: – Correct (Key): (b) ‘Sheep’ is exactly like ‘fish’. It does not change in the plural form (1 sheep, 3 sheep).
- Common Mistake: (a) ‘Sheeps’ is a very common beginner mistake.
- Structural Error: (c) ‘Sheepes’ is a spelling and grammar error.
19 (a) goldfish
Explanation: – Correct (Key): (a) ‘Goldfish’. Since the base word is ‘fish’, it follows the same “no-change” rule as ‘fish’.
- Common Mistake: (b) ‘Goldfishes’ is an incorrect application of the “-es” rule to an irregular word.
- Structural Error: (c) ‘Goldfishs’ is a spelling error.
20 (c) geese
Explanation: – Correct (Key): (c) ‘Geese’ is the irregular plural form of ‘goose’ (changing the double ‘o’ to double ‘e’).
- Common Mistake: (a) ‘Gooses’ is a common attempt to make an irregular noun regular.
- Structural Error: (b) ‘Goose’ is singular.
GRAMMAR POINTS TO REMEMBER
1 Regular Plurals: To count animals, we usually just add -s (e.g., 1 dog -> 2 dogs, 1 cat -> 3 cats, 1 rabbit -> 4 rabbits).
2 The -ES Rule: If a noun ends in a hissing sound (-s, -sh, -ch, -x, -z), add -es (e.g., 1 brush -> 2 brushes, 1 box -> 2 boxes).
3 The Y Rules: * Vowel + Y: Just add -s (e.g., 1 toy -> 2 toys).
- Consonant + Y: Drop the ‘y’, add -ies (e.g., 1 puppy -> 2 puppies, 1 canary -> 2 canaries).
4 The -VES Rule: If a noun ends in -f or -fe, change the ‘f’ to ‘v’ and add -es (e.g., 1 leaf -> 2 leaves).
5 Zero Plurals (Unchanged): Some animals NEVER take an “-s”. They look the same whether you have one or one hundred.
- 1 fish -> 10 fish
- 1 goldfish -> 2 goldfish
- 1 sheep -> 3 sheep
6 Changing Irregular Plurals: Some words change completely and must be memorized:
- 1 mouse -> 2 mice
- 1 goose -> 2 geese
- 1 child -> 2 children