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