I heard the____(wolf) howling last night in the forest?

Irregular plural nouns are nouns that do not become plural by adding -s or -es.

The irregular plural form for words ending with:
-us ➡️ -i
-f or -fe ➡️ -ves
-um or -on ➡️ -a

Can you summarize what you’ve understood in the above steps?

Choice A is correct. "Wolves" is an irregular plural noun. Regular plurals usually add "s" or "es" to the end, but irregular plurals, like "wolves," change the word in a special way. So instead of saying "wolfes," we say "wolves" to talk about more than one wolf.

wolves

Choice B is incorrect because "wolfs" should be "wolves" to be a correct irregular plural noun. Wolves is the plural form of wolf.

wolfs

Choice C is incorrect because the plural form of "wolf" is "wolves," not "wolfes". Irregular plural nouns don’t follow the usual rules for forming plurals, So "wolves" is the correct irregular plural form in this case.

wolfes

Choice D is incorrect because "wolf" is a singular noun, not a plural one. The plural form of "wolf" is "wolves".

wolf

Word given in the parentheses - wolf

Irregular plural form of the word - wolves

Complete sentence - I heard the wolves howling last night in the forest.

Choice A

Can you summarize what you’ve understood in the above steps?