A nonessential phrase is a phrase in a sentence that doesn't need to be there. For example; The boy, who just ate dinner, wrote that story. No one needs to know that the boy just ate dinner. Who just ate dinner is a nonessential phrase.
adjective phrase
adverb
adverb phrase
It is a prepositional phrase functioning as an adverb. Hint: A word or phrase that answers the question 'Where?' is functioning as an adverb (I think).
A prepositional phrase that modifies a noun or pronoun is an adjective prepositional phrase. An adjective prepositional phrase almost always follows the noun/pronoun it modifies.
A nonessential modifier is a word, phrase, or clause that adds extra information to a sentence but is not crucial for its overall meaning. If removed, the sentence still retains its core meaning. Nonessential modifiers are typically set off by commas to indicate that the information is supplementary. For example, in the sentence "My brother, who lives in New York, is visiting," the clause "who lives in New York" is a nonessential modifier.
All nonessential personnel will have to stay behind the barriers.
It is nonessential information to list every flower on his property.His elementary school grades are nonessential on a job application.
The phrase "you know what I mean" is usually a nonessential, habitual phrase used to gain understanding, empathy or agreement from the listener. Frankly, its usage is a bad habit as it denotes the need for acceptance.
essential means it is very important and nonessential means that it isn't important.
paranthesis
Prepositional phrases should be set off with a comma if they are nonessential or nonrestrictive information in a sentence. If the prepositional phrase provides essential or restrictive information, it does not require a comma.
superficial, surface, nonessential
glycine
8
Not essential., A thing not essential.
NonEssential Amino Acids