Some people would lượt thích you khổng lồ think that the rules of English grammar are set in stone.

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They want you to follow the rules, & pretkết thúc that grammar has always been the way they say it is.

You might even hear them say that you’re speaking incorrectly, even if you’ve sầu been saying something a certain way all your life.

While these people are certainly overstating their case, there is something khổng lồ be said for knowing what the rules are.

One of the most commonly maligned (and most commonly broken) grammar rule is that you are never supposed to kết thúc a sentence with a preposition.

As an example, consider the phrase “of which.”

How vày you use “of which” in a sentence?

The phrase “of which” is a prepositional phrase used at the beginning of a relative sầu clause, a type of clause used lớn identify the noun before the preposition. Specifically, “of” is the preposition, while “which” is the relative pronoun. To use this phrase in sentence, simply place a comma after a noun you wish khổng lồ explain in more detail và then add the explanation, preceded by “of which.”

What is “of which”?

“Of which” is a prepositional phrase, meaning it is made up of a preposition, “of,” and one other word. In this case, that other word is “which,” a pronoun used lớn provide more detail about a person, place, thing or idea referred lớn elsewhere in the sentence.

Taken together, the meaning is something lượt thích “regarding the previously mentioned, some additional details include…”

Because that’s very wordy, it’s much easier to just say “of which.”

How lớn use “of which” in a sentence

The phrase “of which” can only appear at the beginning of a relative clause, a special type of clause that is used to lớn further explain another part of the sentence in which it appears.

When using “of which” khổng lồ begin a relative sầu clause, first you must place a comma after the noun. Next, add “of which.” Finally, write the rest of the clause khổng lồ better explain the noun.

Relative clauses can be inserted at the over of a sentence, in which case they are followed by a period, or they can fall in the middle of a sentence, in which case they need khổng lồ be followed by another comma.

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The formulas, then, are as follows:

, of which . , of which ,

Examples


It should be clear from these examples how “of which” is used in several different contexts.

As the first two show, the phrase is often used to begin a relative clause involving numbers. However, that doesn’t have sầu to be the case.

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Other ways khổng lồ write “of which”

If you don’t want to figure out how khổng lồ use “of which” in a sentence, try one of these alternatives.

Replacing “of which” with “which … of”

Technically speaking, you shouldn’t kết thúc a sentence with a preposition in formal writing. This is the reason for the somewhat confusing phrase, “of which.”

Today, this rule is fairly relaxed, and in more casual writing, or everyday speech, you will be more likely see the relative clause started with just “which,” and the word “of” fall either at the over or elsewhere in the clause, instead.

Examples

In the last two examples here, “of” appears at the end of the relative sầu clause, placing it at the kết thúc of the second sentence altogether.

The first example is a little more complicated to lớn rewrite, but what appears above sầu is grammatically correct all the same.

Replacing “of which” with a separate sentence.

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Another way to avoid guessing how to use “of which” in a sentence is to lớn simply split the relative clause into its own sentence.