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