The Noun Phrase
Recognize a noun phrase when you see one.
You can find the noun dog in a sentence, for example, but you don't know which canine the writer means until you consider the entire noun phrase: that dog, Aunt Audrey's dog, the dog on the sofa, the neighbor's dog that chases our cat, the dog digging in the new flower bed.
Articles: a dog, the dog
Possessive nouns: Aunt Audrey's dog, the neighbor's dog, the police officer's dog
Possessive pronouns: our dog, her dog, their dog
Adjectives: that dog, the big dog, the spotted dog
Participles: the drooling dog, the barking dog, the well trained dog
Prepositional phrases: a dog on the loose, the dog in the front seat, the dog behind the fence
Adjective clauses: the dog that chases cats, the dog that looks lost, the dog that won the championship
Participle phrases: the dog whining for a treat, the dog clipped at the grooming salon, the dog walked daily
Infinitives: the dog to catch, the dog to train, the dog to adopt
We who were green with envy
We = subject pronoun; who were green with envy = modifier.
Someone = indefinite pronoun; intelligent = modifier.
No one important
No one = indefinite pronoun; important = modifier.