Nouns ending in a consonant followed by -y change the -y to -ies in the plural form.
Monopoly is regular. It follows the -ies Conversion rule.
Use plural verbs: "The monopolies are ready" (not "is ready").
Yes. The plural monopolies is standard across all English variants.
The word monopoly follows the standard English pluralization rule. When forming the plural, monopoly becomes monopolies. This follows the -ies Conversion pattern, which is one of the most common plural rules in English.
Understanding why monopoly becomes monopolies helps with spelling and pronunciation. Nouns ending in a consonant followed by -y change the -y to -ies in the plural form.
When using monopolies in writing, remember that it functions as a plural noun in sentences. It pairs with plural verbs and pronouns. For example: "The monopolies are ready" (not "is ready"). This subject-verb agreement is essential for grammatical correctness.