Most nouns ending in -o add -es to form the plural (with some exceptions like photo/photos).
Iso is regular. It follows the -es Addition rule.
Use plural verbs: "The isoes are ready" (not "is ready").
Yes. The plural isoes is standard across all English variants.
The word iso follows the standard English pluralization rule. When forming the plural, iso becomes isoes. This follows the -es Addition pattern, which is one of the most common plural rules in English.
Understanding why iso becomes isoes helps with spelling and pronunciation. Most nouns ending in -o add -es to form the plural (with some exceptions like photo/photos).
When using isoes in writing, remember that it functions as a plural noun in sentences. It pairs with plural verbs and pronouns. For example: "The isoes are ready" (not "is ready"). This subject-verb agreement is essential for grammatical correctness.