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