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