Nouns ending in -s, -x, -z, -ch, or -sh add -es to form the plural. This makes the word easier to pronounce.
Eyewitness is regular. It follows the -es Addition rule.
Use plural verbs: "The eyewitnesses are ready" (not "is ready").
Yes. The plural eyewitnesses is standard across all English variants.
The word eyewitness follows the standard English pluralization rule. When forming the plural, eyewitness becomes eyewitnesses. This follows the -es Addition pattern, which is one of the most common plural rules in English.
Understanding why eyewitness becomes eyewitnesses helps with spelling and pronunciation. Nouns ending in -s, -x, -z, -ch, or -sh add -es to form the plural. This makes the word easier to pronounce.
When using eyewitnesses in writing, remember that it functions as a plural noun in sentences. It pairs with plural verbs and pronouns. For example: "The eyewitnesses are ready" (not "is ready"). This subject-verb agreement is essential for grammatical correctness.