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