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