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