What is the sentence structure, purpose and pattern of this sentence??

Question

My dog, Ben likes to chase cats and birds.

Answer 1

There should be NO COMMA in that sentence.

My - possessive pronoun, modifying DOG
dog - noun, subject
Ben - noun, appositive
likes - main verb
to chase - verb, infinitive form
cats - noun, co-direct object
and - conjunction
birds - noun, co-direct object

Now ... what structure, purpose, and pattern do you see? What have you been studying in class?