Choose the correct plural form of 'knife':

The correct plural form of 'knife' is 'knives'. This follows the rule where words ending in 'fe' change to 'ves' in their plural form.

What is the plural of 'hero'?

The plural of 'hero' is 'heroes'. Words ending in 'o' preceded by a consonant often add 'es' to form the plural.

Select the correct plural of 'potato':

The correct plural of 'potato' is 'potatoes'. Similar to 'hero', words ending in 'o' preceded by a consonant often add 'es'.

Choose the correct plural form of 'quiz':

The plural of 'quiz' is 'quizzes'. Words ending in 'z' often double the 'z' and add 'es'.

What is the plural of 'tomato'?

The plural of 'tomato' is 'tomatoes'. Similar to 'potato', words ending in 'o' preceded by a consonant often add 'es'.

Select the correct plural of 'echo':

The correct plural of 'echo' is 'echoes'. Words ending in 'o' preceded by a vowel often just add 's', but 'echo' is an exception.

Choose the correct plural form of 'box':

The plural of 'box' is 'boxes'. Words ending in 'x' often add 'es' to form the plural.

What is the plural of 'church'?

The plural of 'church' is 'churches'. Words ending in 'ch' often add 'es' to form the plural.

Choose the plural form of 'bus':

The plural of 'bus' is 'buses'. Words ending in 's' often add 'es' to form the plural.

Select the correct plural of 'loaf':

The correct plural of 'loaf' is 'loaves'. Words ending in 'f' often change to 'ves' in their plural form.

What is the plural form of 'half'?

The plural of 'half' is 'halves'. Similar to 'loaf', words ending in 'f' often change to 'ves'.

Choose the plural of 'roof':

The plural of 'roof' is 'roofs'. This is an exception where words ending in 'f' just add 's'.

Select the correct plural form of 'calf':

The correct plural of 'calf' is 'calves'. Similar to 'half', words ending in 'f' often change to 'ves'.

What is the plural form of 'life'?

The plural of 'life' is 'lives'. Words ending in 'fe' often change to 'ves'.

Choose the plural of 'thief':

The plural of 'thief' is 'thieves'. Similar to 'knife', words ending in 'fe' change to 'ves'.

Select the correct plural form of 'shelf':

The correct plural of 'shelf' is 'shelves'. Similar to 'calf', words ending in 'f' often change to 'ves'.

What is the plural of 'index'?

The plural of 'index' is 'indices'. This follows the rule for some words of Latin origin.

Choose the plural form of 'crisis':

The plural of 'crisis' is 'crises'. Similar to 'index', this follows the rule for some words of Latin origin.

What is the plural of 'axis'?

The plural of 'axis' is 'axes'. This follows the rule for some words of Latin origin.

Select the correct plural of 'phenomenon':

The correct plural of 'phenomenon' is 'phenomena'. This follows the rule for some words of Greek origin.

What is the plural form of 'datum'?

The plural of 'datum' is 'data'. This follows the rule for some words of Latin origin.

Choose the plural form of 'medium':

The plural of 'medium' is 'media'. This follows the rule for some words of Latin origin.

What is the plural of 'foot'?

The plural of 'foot' is 'feet'. This is an irregular plural form that does not follow standard rules.

Choose the plural of 'sheep':

The plural of 'sheep' is 'sheep'. This is an irregular plural form where the singular and plural are the same.

What is the plural form of 'aircraft'?

The plural of 'aircraft' is 'aircraft'. Similar to 'sheep', the singular and plural forms are the same.

Select the plural of 'moose':

The plural of 'moose' is 'moose'. This is another example where the singular and plural forms are identical.

Choose the plural of 'series':

The plural of 'series' is 'series'. The singular and plural forms are the same.

What is the plural of 'species'?

The plural of 'species' is 'species'. The singular and plural forms are identical.

Choose the plural form of 'radius':

The plural of 'radius' is 'radii'. This follows the rule for some words of Latin origin.

What is the plural of 'alumnus'?

The plural of 'alumnus' is 'alumni'. This follows the rule for some words of Latin origin.

Select the correct plural form of 'bacterium':

The correct plural of 'bacterium' is 'bacteria'. This follows the rule for some words of Latin origin.

What is the plural of 'curriculum'?

The plural of 'curriculum' is 'curricula'. This follows the rule for some words of Latin origin.

Choose the correct plural form of 'book':

The correct plural form of 'book' is 'books'. Most English nouns form their plurals by adding -s to the singular form.

What is the plural of 'baby'?

The correct plural form of 'baby' is 'babies'. Nouns ending in a consonant followed by 'y' change the 'y' to 'i' and add -es.

Which word is the plural of 'toy'?

The correct plural form of 'toy' is 'toys'. Nouns ending in a vowel followed by 'y' simply add -s to form the plural.

Select the correct plural form of 'child':

The correct plural form of 'child' is 'children'. This is an example of an irregular plural noun.

Choose the correct plural form of 'house':

The correct plural form of 'house' is 'houses'. Most nouns ending in -se add -s to form the plural.

Select the correct plural form of 'fish':

The correct plural form of 'fish' is 'fish'. Some nouns have the same singular and plural forms.

Which word is the plural of 'mouse'?

The correct plural form of 'mouse' is 'mice'. This is an example of an irregular plural noun.

Choose the correct plural form of 'person':

The correct plural form of 'person' is 'people'. This is an example of an irregular plural noun.

Which word is the plural of 'wolf'?

The correct plural form of 'wolf' is 'wolves'. Nouns ending in -f or -fe often change to -ves for the plural.

Select the correct plural form of 'goose':

The correct plural form of 'goose' is 'geese'. This is an example of an irregular plural noun.

What is the plural of 'man'?

The correct plural form of 'man' is 'men'. This is an example of an irregular plural noun.

Choose the correct plural form of 'ox':

The correct plural form of 'ox' is 'oxen'. This is an example of an irregular plural noun.

What is the plural of 'child'?

The correct plural form of 'child' is 'children'. This is an example of an irregular plural noun.

Select the correct plural form of 'tooth':

The correct plural form of 'tooth' is 'teeth'. This is an example of an irregular plural noun.

What is the plural of 'leaf'?

The correct plural form of 'leaf' is 'leaves'. Nouns ending in -f or -fe often change to -ves for the plural.

Which word is the plural of 'cactus'?

The correct plural form of 'cactus' is 'cacti'. This noun follows the Latin pattern of changing -us to -i for the plural.

Choose the correct plural form of 'deer':

The correct plural form of 'deer' is 'deer'. Some nouns have the same singular and plural forms.

Which word is the plural of 'analysis'?

The correct plural form of 'analysis' is 'analyses'. This noun follows the Greek pattern of changing -sis to -ses for the plural.