Explain why the phrase in this sentence is nonrestrictive or nonessential to the sentence

Relative Pronouns: Restrictive and Nonrestrictive Clauses

TIP Sheet
RELATIVE PRONOUNS: RESTRICTIVE AND NON-RESTRICTIVE

The relative pronouns are: who, whom, whose, which, and that. Relative pronouns introduce subordinate clauses functioning as adjectives. Use commas to set off nonrestrictive subordinate clauses, and do not use commas to set off restrictive clauses. The choice of relative pronouns is determined by the way the pronoun is used and the noun or pronoun to which it refers. Who, which, and that take verbs that agree with their antecedents.

1. Relative pronouns introduce subordinate clauses functioning as adjectives.

The man who robbed us was never caught.
The arrow that has left the bow never returns.

In addition to introducing the clause, the relative pronoun, in this case
who, points back to a noun or pronoun that the clause modifies (man). In the second sentence, that points back to arrow.

Relative pronouns are sometimes "understood."

The things [that] we know best are the things [that] we haven't been taught.

2. Use commas to set off nonrestrictive elements. Do not use commas to set off restrictive elements.

A restrictive element defines or limits the meaning of the word it modifies and is therefore essential to the meaning of the sentence. Because it contains essential information, a restrictive element is not set off with commas.

Restrictive: For camp the children need clothes that are washable.

If you remove a restrictive element from a sentence, the meaning changes significantly, becoming more general than you intended. The writer of the example sentence does not mean that the children need clothes in general. The intended meaning is more limited: The children need washable clothes.

Nonrestrictive: For camp the children need sturdy shoes, which are expensive.

A nonrestrictive element describes a noun or pronoun whose meaning has already been clearly defined or limited. Because it contains nonessential or parenthetical information, a nonrestrictive element is set off with commas. If you remove a nonrestrictive element from a sentence, the meaning does not change significantly. The children need sturdy shoes, and these happen to be expensive.

3. The choice of that, which, who, or whom is dependent upon the way in which the pronoun is used within the sentence, as well as the noun or pronoun to which it refers.

In general, use that with restrictive clauses and which with nonrestrictive clauses.

Do not use which to refer to persons. Use who instead. That, though generally used to refer to things, may be used to refer to a group or class of people.

Fans wondered how an old man who (not that or which) walked with a limp could play football.
The team that scores the most points in this game will win the tournament.

Who is used for subjects and subject complements; whom is used for objects.

Who is bringing what for whom?

4. Who, which, and that take verbs that agree with their antecedents.

Take a suit that travels well. (A suit... travels well.)
Take clothes that are easy to wash. (Clothes... are easy to wash.)

Sometimes problems occur when one of the and only one of the are used. Generally, one of the is treated as plural, and only one of the is treated as singular.

Our ability to use language is one of the things that set us apart from animals.

The antecedent of that is things, not one. Several things set us apart from animals, and language is one of them.

Carmen is the only one of the applicants who has the ability to step into this position.

The antecedent of who is one, not applicants. Only one applicant, Carmen, has the ability to step into the position.

Use a comma (or a pair of commas) to set off elements that are nonessential (also called nonrestrictive). A phrase or clause is nonessential if it can be removed without changing the main idea of the sentence; a nonessential element just adds a relatively unimportant detail. Essential (or restrictive) elements, on the other hand, are not set off by commas because they are too important to be removed from a sentence.

Participial Phrases

Nonessential participial phrases describe nouns, but the information they provide about those nouns is not very important. Use a comma (or a pair of commas) to separate a nonessential participial phrase from the rest of the sentence.

Walking slowly, the tourists followed the guide through the museum.
The tourists, walking slowly, followed the guide through the museum.

If you remove the participial phrase walking slowly from either of these sentences, the main idea of the sentence (the tourists followed the guide through the museum) doesn't change.

Hint:A participial phrase at the beginning of a sentence is always nonessential.

Essential (or restrictive) participial phrases also describe nouns, but they tell us vital information about those nouns. Do not use commas around essential participial phrases.

The tourists eating ice cream cones were not allowed into the museum until they finished eating.

Only the tourists eating ice cream cones were not allowed in. If you removed the phrase eating ice cream cones, the meaning of the sentence would change—it would mean that none of the tourists was let in, which is very different from the original sentence.

Adjective Phrases

Use commas to separate nonessential adjective phrases from the rest of the sentence. These phrases can be prepositional or verbal.

My cell phone, in its blue case, seems to vanish into my backpack whenever it rings. (prepositional phrase)
We don't need to know that the cell phone is in a blue case. This is a nonessential detail.

My cell phone, ringing loudly, has vanished into my backpack. (participial phrase, which is a type of verbal.)
The cell phone would have vanished into your backpack regardless of whether it had been ringing or not, so ringing loudly is a nonessential detail.

Do not use commas to separate essential adjective phrases from the rest of the sentence.

The television with the broken screen needs to be recycled.
The phrase with the broken screen specifies which television. It's not the new television that needs to be recycled; it's the one with the broken screen.

The cell phone ringing loudly needs to be turned off.
Not just any phone needs to be turned off; it's the one that's ringing loudly.

Appositives

Use commas to separate nonessential appositives from the rest of the sentence.

My Latin teacher, Mr. Virga, gives us homework every night.
We don't need to know your Latin teacher's name to understand that he gives you homework, so his name is a nonessential appositive.

Do not use commas to separate essential appositives from the rest of the sentence.

My friend Elizabeth is one of the nicest people I know.
If you didn't tell us your friend's name, we wouldn't know which friend you were talking about, so her name is an essential appositive.

Adjective Clauses

Use commas to set off nonessential adjective clauses. In American English many authors use which to start nonessential clauses and that to start essential clauses.

Joey ordered frozen yogurt, which he thinks is healthier, instead of ice cream.
The main idea of this sentence is that Joey ordered frozen yogurt instead of ice cream, so it's possible to remove the adjective clause without changing the meaning of the sentence.

It's not necessary to set off an essential adjective clause with commas.

The painting that my mom bought in France is still waiting to be framed.
Without the adjective clause, we are left wondering exactly which painting is waiting to be framed.

Practice What You've Learned

Directions:One or more commas have been omitted from each of the following sentences. Insert a comma (or commas) by clicking the space(s) after the appropriate word(s).1. Caught, between, two, worlds, the, immigrants, landed.2.This, solution, will, work, in, my, opinion, but, the, cost, will, be, high.3.Ms., Jones, who, is, my, English, teacher, is, being, nominated, for, teacher, of, the, year.4.Encouraged, by, the, good, news, the, team, vowed, to, win.5.The, road, to, success, I, have, found, is, paved, with, hard, work.6.Fearing, the, dark, the, children, quickened, their, pace.7.John, Glenn, US, senator, and, astronaut, is, a, national, hero.8.John, will, come, to, understand, if, he, has, any, sense, at, all, that, he, has, been, wrong.9.A, letter, of, appreciation, was, sent, to, Jane, Whitney, our, chairperson.10.The, school, which, is, on, Main, Street, was, damaged, in, the, January, earthquake.

Why the phrase in this sentence is nonrestrictive or nonessential to the sentence My youngest brother Julian is already taller than I am?

Explain why the phrase in this sentence is non-restrictive, or nonessential to the sentence: my youngest brother, Julian, is already taller than I am. The name "Julian" is not necessary in the sentence. The writer can have only one youngest brother, so the name "Julian" is extra information.

Which element in the sentence is nonrestrictive?

Nonrestrictive elements are groups of words that can be removed without changing the meaning of the sentence. Because removing them does not change meaning, nonrestrictive elements can be set off from the rest of the sentence. CORRECT: I'd like to have more pets, but I only have one cat, Bill.