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