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