Ending a Sentence with a Preposition: Myth or Rule?

Few grammar debates spark as much confusion as whether you can end a sentence with a preposition. For generations, students have been told that sentences like "Who did you go with?" are grammatically incorrect and should be rephrased as "With whom did you go?" But is this actually a rule of English grammar, or is it a myth that has persisted without good reason? In this comprehensive guide, we will explore the history behind this so-called rule, examine what modern grammarians say, and provide clear guidance on when ending a sentence with a preposition is perfectly acceptable—and when you might want to rephrase.

What Is a Preposition?

Before tackling the myth, let's clarify what prepositions are. A preposition is a word that shows the relationship between a noun (or pronoun) and other words in a sentence. Common prepositions include in, on, at, to, for, with, about, by, from, and of.

Prepositions typically appear before their objects to form prepositional phrases: "on the table," "with my friend," "at the store." When the object moves earlier in the sentence—often in questions or relative clauses—the preposition can end up at the end, a construction known as preposition stranding.

Examples of Preposition Stranding

In the first version, the preposition "at" is stranded at the end. In the second, it has been moved to the front. Both are grammatically valid, but the first sounds far more natural to most English speakers.

Origin of the Preposition Myth

The idea that you should never end a sentence with a preposition traces back to the 17th and 18th centuries, when English grammarians tried to impose Latin grammar rules on English. In Latin, a preposition must come before its object—the word "preposition" itself comes from the Latin praepositio, meaning "placed before." Since Latin was considered the gold standard of language, scholars like John Dryden (in 1672) and later Robert Lowth (in his 1762 grammar book) argued that English should follow the same convention.

Dryden even went back and revised his own earlier writings to remove terminal prepositions. Lowth's grammar textbook, A Short Introduction to English Grammar, became enormously influential, and his guidance on prepositions was passed down through generations of schoolteachers. However, even Lowth himself acknowledged that ending a sentence with a preposition was common in English and not always wrong.

Why Latin Rules Don't Apply to English

English and Latin are fundamentally different languages. Latin is a synthetic language with a complex inflection system, where word order is relatively flexible because grammatical relationships are shown through word endings. English, by contrast, is an analytic language that relies heavily on word order to convey meaning. Trying to force Latin grammatical structures onto English is like trying to use a wrench as a hammer—the tool doesn't fit the job.

Moreover, English has Germanic roots, and in Germanic languages, preposition stranding is a natural and deeply embedded feature. Old English, Middle English, and Modern English have all used terminal prepositions for over a thousand years.

What Modern Grammarians Say

Today, virtually every major style guide and grammar authority agrees: ending a sentence with a preposition is perfectly acceptable in English. Here is what some of the most respected sources say:

• The Chicago Manual of Style: Explicitly states that the "rule" against terminal prepositions is a superstition.
• Merriam-Webster: Notes that the prohibition has "no basis in grammar" and that terminal prepositions are standard English.
• Fowler's Modern English Usage: Calls the supposed rule "a cherished superstition."
• The Oxford English Dictionary: Contains centuries of examples of sentences ending with prepositions from respected authors.
• Garner's Modern English Usage: Rates the avoidance of terminal prepositions as a "superstition" rather than a legitimate rule.

The consensus is clear: this is not a rule of English grammar. It is a stylistic preference that was artificially imposed and has never reflected actual English usage.

When Ending with a Preposition Is Fine

In most situations, ending a sentence with a preposition is not only acceptable but preferable. Here are the main cases:

1. Questions

Moving the preposition to the front ("About what are you thinking?") sounds stilted and overly formal in most contexts.

2. Relative Clauses

3. Passive Constructions

4. Infinitive Clauses

When You Might Want to Rephrase

While terminal prepositions are grammatically correct, there are situations where rephrasing can improve your writing:

1. Very Formal Writing

In highly formal contexts—academic papers, legal documents, or formal speeches—some readers still expect a more traditional style. In these cases, moving the preposition may be appropriate, but only if the result sounds natural.

2. When the Sentence Sounds Awkward

Sometimes a sentence ending with a preposition sounds clumsy regardless of any rule. If the sentence doesn't flow well, rephrase it—not because of the preposition rule, but because clarity and readability should always come first.

3. Unnecessary Prepositions

In cases like these, the issue isn't the position of the preposition—it's that the preposition is unnecessary entirely.

Preposition Stranding Explained

Preposition stranding occurs when a preposition appears without its complement (object) immediately following it. This happens naturally in English in several grammatical constructions. Understanding preposition stranding helps you see why terminal prepositions are a feature of English, not a flaw.

Consider the sentence: "This is the topic that we were arguing about." The preposition "about" is stranded because its object ("the topic") has moved to the beginning of the clause. The alternative—"This is the topic about which we were arguing"—uses a construction called pied-piping, where the preposition moves along with its object.

Both constructions are grammatical. Preposition stranding tends to sound more natural and conversational, while pied-piping can sound more formal or literary. The choice between them is a matter of style, not correctness.

Famous Quotes and Examples

Perhaps the most famous quip about terminal prepositions is attributed (possibly apocryphally) to Winston Churchill:

"This is the sort of English up with which I will not put."

Whether Churchill actually said this or not, the quote brilliantly illustrates how absurd English can sound when you contort sentences to avoid terminal prepositions. The natural version—"This is the sort of English I will not put up with"—is far clearer.

Here are sentences from celebrated English authors that end with prepositions:

• Shakespeare: "We are such stuff as dreams are made on." (The Tempest)
• Jane Austen: "Fanny could with difficulty give the smile that was asked for." (Mansfield Park)
• Charles Dickens: Used terminal prepositions throughout his works without hesitation.

If it was good enough for Shakespeare and Austen, it should be good enough for the rest of us.

Phrasal Verbs and Prepositions

One important category to understand is phrasal verbs—verbs that combine with a preposition or adverb to create a new meaning. Examples include "give up," "look into," "put up with," "come across," and "run into."

With phrasal verbs, the particle (preposition/adverb) is an essential part of the verb's meaning. You cannot simply remove it or move it without destroying the meaning:

Phrasal verbs are one of the strongest arguments against the terminal preposition "rule." English has hundreds of phrasal verbs, and they naturally place prepositions at the end of clauses.

Formal vs. Informal Writing

The appropriateness of terminal prepositions can vary by register, but even in formal writing, they are often the better choice:

Informal Writing and Speech

In everyday conversation, emails, blog posts, and casual writing, ending sentences with prepositions is completely standard. Avoiding terminal prepositions in casual contexts can actually make your writing sound pretentious or awkward.

Formal and Academic Writing

Even in academic and professional writing, terminal prepositions are widely accepted. The key is clarity. If a sentence is clear and reads well with a terminal preposition, keep it. If rephrasing improves readability, go ahead and rephrase—but do so for the sake of clarity, not to follow a nonexistent rule.

Creative Writing

In fiction, poetry, and creative nonfiction, terminal prepositions are essential for creating natural-sounding dialogue and prose. Avoiding them can make characters sound robotic or unrealistic.

Common Examples Analyzed

Let's look at some common sentences and evaluate whether the terminal preposition works well or whether rephrasing is better:

Sentences That Benefit from Rephrasing

Occasionally, a sentence with a terminal preposition can be improved—not because of the preposition rule, but for stylistic reasons:

The revised version isn't better because it avoids a terminal preposition—it's better because it's more concise and direct.

Practical Tips for Writers

Here are actionable guidelines for handling prepositions at the end of sentences:

1. Don't automatically rephrase. If a sentence sounds natural with a terminal preposition, leave it alone.
2. Read your sentence aloud. Does it sound natural? If so, the preposition placement is fine.
3. Check for unnecessary prepositions. Remove redundant prepositions regardless of position (e.g., "Where is it at?" → "Where is it?").
4. Consider your audience. For very formal contexts, you might occasionally choose pied-piping, but only if it sounds natural.
5. Prioritize clarity. The goal of grammar is clear communication. If moving a preposition makes a sentence harder to understand, leave it where it is.
6. Know the difference between prepositions and particles. In phrasal verbs, the particle must stay with the verb. Don't try to move it.
7. Ignore anyone who "corrects" you. If someone tells you that you can't end a sentence with a preposition, you can confidently explain that this is a myth—not a rule of English grammar.