in the sentence. Hello, my name is Pablo. what is the subject? is my or name?

The simple subject is "name." The complete subject is "my name."

In the sentence: Hello, my name is Melissa. What is the predicate?

In the sentence, "Hello, my name is Pablo," the subject is "name." The subject is the noun or pronoun that performs the action of the verb or is being described by the verb. In this sentence, the noun "name" is the subject because it is the main focus of the sentence. The pronoun "my" is a possessive pronoun that indicates ownership, but it does not serve as the subject in this sentence. To identify the subject, it helps to ask the question "Who or what is the sentence talking about?" In this case, the sentence is talking about the name, so "name" is the subject.