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