Both Ben and he will graduate at the same time.

subject
predicate nominative
appositive

I got it but it was wanting to know the underlined pronoun which was he but it's subject. But I do have a few other questions if you care to help.

Identify how the underlined pronoun in each sentence is being used.

1. Someone sent Ed and me a text from an unknown place. (me is underlined)
direct object
indirect object

2. Mr. Simons saw Owen and us at the registry. (us is underlined)
direct object
indirect object

3. Show Edie and her your new computer. (her is underlined)
direct object
indirect object

You need to study how pronouns are used as direct objects and as indirect objects to answer these three.

http://www.chompchomp.com/terms/directobject.htm

http://www.chompchomp.com/terms/indirectobject.htm

To identify the subject, predicate nominative, and appositive in the sentence "Both Ben and he will graduate at the same time," you need to understand the function of each grammatical term.

- Subject: The subject is the noun or pronoun that performs the action or is being described in a sentence. It is usually positioned before the verb. In this sentence, "Both Ben and he" is the subject because it is referring to the individuals who will graduate.

- Predicate Nominative: A predicate nominative is a noun or pronoun that follows a linking verb and renames or identifies the subject. In this sentence, "will graduate" is the verb phrase, and since it is a linking verb, the subject is connected to the predicate nominative. In this case, the subject is connected to "graduate." Therefore, the predicate nominative is "graduate."

- Appositive: An appositive is a noun or noun phrase that renames or provides additional information about a nearby noun or pronoun. It is usually set off by commas. In this sentence, there is no appositive.

So, to summarize:
- Subject: Both Ben and he
- Predicate Nominative: graduate
- Appositive: Not applicable (N/A)