This noun follows the standard English plural rule: simply add -s to the singular form.
Deepen is regular. It follows the Standard -s rule.
Use plural verbs: "The deepens are ready" (not "is ready").
Yes. The plural deepens is standard across all English variants.
The word deepen follows the standard English pluralization rule. When forming the plural, deepen becomes deepens. This follows the Standard -s pattern, which is one of the most common plural rules in English.
Understanding why deepen becomes deepens helps with spelling and pronunciation. This noun follows the standard English plural rule: simply add -s to the singular form.
When using deepens in writing, remember that it functions as a plural noun in sentences. It pairs with plural verbs and pronouns. For example: "The deepens are ready" (not "is ready"). This subject-verb agreement is essential for grammatical correctness.