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