A preposition is a small linking word that shows how a noun or pronoun relates to the rest of the sentence — most often its place, direction, time, or manner. Everyday examples include in, on, at, to, from, of, by, with, and under, as in “the cat slept under the bed.” And to settle the oldest myth in English grammar right away: yes, you can end a sentence with a preposition — you always could.
- Its job: a preposition links a noun or pronoun to another word and shows the relationship between them.
- Its position: it normally sits before its object — the noun or pronoun it governs (“after lunch,” “to her”).
- The nine most common: of, to, in, for, with, on, at, by, and from.
- The myth: ending a sentence with a preposition is correct and often the most natural choice.
What Does a Preposition Actually Do?
A preposition never works alone. It introduces a noun, pronoun, or noun phrase — its object — and the two together form a prepositional phrase. In “she left the letter on the desk,” the preposition on connects the verb left to the noun desk and tells you where. Change only the preposition and you change the whole meaning: the letter could be on, under, beside, near, or in the desk.
Because the object belongs to the preposition, a pronoun object takes its object form: “a gift for her” (not “for she”) and “between you and me” (not the very common “between you and I”).
Common Prepositions, Sorted by Job
English has more than 100 prepositions, but a small group does most of the heavy lifting. Here are the everyday ones, grouped by the relationship they express.
Place and position
- in, on, at, inside, under, over, above, below, beside, between, among, behind, near, against, in front of
- “The keys are in the drawer.” · “We met at the station.” · “A path runs between the houses.”
Time
- at, on, in, before, after, during, since, until, for, by
- “At noon.” · “On Friday.” · “In July.” · “Finished by five.” · “Waited for an hour.”
Direction and movement
- to, from, into, onto, toward(s), through, across, along, past, out of, up, down
- “Walk toward the light.” · “She jumped into the pool.” · “Drive through the tunnel.”
Manner, cause, and connection
- of, for, with, without, about, by, like, despite, except
- “A cup of tea.” · “Painted by hand.” · “Tea with milk.” · “Late despite the warning.”
Some prepositions are two or three words long — called complex or phrasal prepositions: according to, because of, instead of, in spite of, next to, out of, due to, ahead of. They act as a single unit: “We stayed indoors because of the rain.”
Correct vs. Incorrect Preposition Use
Most preposition errors aren’t about grammar rules at all — they’re about idiom. English simply pairs particular words with particular prepositions, and the wrong pairing sounds off to a native ear.
- ✓ “good at chess” ✗ “good in chess”
- ✓ “it depends on the weather” ✗ “it depends of the weather”
- ✓ “interested in history” ✗ “interested for history”
- ✓ “capable of winning” ✗ “capable to win”
- ✓ “arrive at the airport” / “in London” ✗ “arrive to the airport”
- ✓ “married to her” ✗ “married with her”
- ✓ “prevent them from leaving” ✗ “prevent them to leave”
Can You End a Sentence With a Preposition?
Yes — and you always could. The belief that a sentence must never end with a preposition is a myth, not a rule of English. It was formulated in the 17th century by the grammarian Joshua Poole and popularised by the poet John Dryden, who in 1672 criticised Ben Jonson for the habit — largely because Latin does not allow a stranded preposition and Dryden’s era idolised Latin. English is not Latin, and serious usage experts abandoned the “rule” more than a century ago.
Every major authority now agrees. The Chicago Manual of Style has accepted terminal prepositions since 1906 and calls the old caveat “an unnecessary and pedantic restriction.” Merriam-Webster, Fowler’s, and Garner’s say the same. Contorting a sentence to move the preposition often produces stilted English — hence the joke long (and wrongly) attributed to Winston Churchill: “This is the sort of English up with which I will not put.”
In many sentences, ending with a preposition is the only natural option:
- ✓ “Where are you from?” (not “From where are you?”)
- ✓ “That’s the song I told you about.”
- ✓ “She’s someone you can rely on.”
- ✓ “What did you do that for?”
The one real caveat is to drop a preposition that adds nothing. That’s about redundancy, not position:
- ✗ “Where are you at?” → ✓ “Where are you?”
- ✗ “Where did she go to?” → ✓ “Where did she go?”
- ✗ “It fell off of the shelf.” → ✓ “It fell off the shelf.”
Tricky Cases
Preposition or conjunction?
Words such as after, before, since, and until can be either. As a preposition it takes a noun object: “after the meeting.” As a conjunction it introduces a whole clause with its own verb: “after we met.” Same word, different job.
Preposition or particle?
In “turn off the light,” off isn’t really a preposition — it’s a particle that belongs to the phrasal verb turn off. A true preposition needs an object: compare “he ran up the hill” (preposition — up governs hill) with “he gave up” (particle — no object).
“Like” or “as”?
Like is a preposition and takes a noun: “he sings like a professional.” As introduces a clause: “do as I say.” In careful writing, prefer “as I said” to “like I said,” though the latter is common in speech.
A Simple Memory Trick
For the spatial prepositions, picture a mouse and a box: a preposition is anywhere the mouse can go — in, on, under, over, beside, behind, through, past, around, near, or between the box. It’s a quick, reliable test, but remember it only catches place and direction words; abstract prepositions like of, for, and despite don’t fit the picture yet are just as real.
US vs. UK Differences That Matter
Prepositions are one of the clearest dividing lines between American and British English. Neither version is “wrong” — just match your audience.
- Weekends: UK “at the weekend”; US “on the weekend.”
- Ranges: UK “Monday to Friday”; US “Monday through Friday.”
- Different: UK “different from” or “different to”; US “different from” or “different than.”
- Institutions: UK “in hospital”; US “in the hospital.”
- Forms: UK “fill in a form”; US “fill out a form.”
- Contacting: UK “write to me”; US often “write me.”
Learn the handful of common prepositions and their idiomatic partners, and the rest is confidence: these are the smallest words in English, they map time and space onto almost every sentence you write — and they’re free to sit at the very end whenever that sounds best.
