Prepositions in English Grammar
முன்னிடைச்சொற்கள்

Common prepositions are small words that link nouns, pronouns, or phrases to other words in a sentence. They show time, place, direction, or position. The most frequent ones include: in, on, at, to, for, with, by, from, of, and about.

Common Types of Prepositions

Prepositions of Place (Location)

In: Used for enclosed spaces or big areas (in a box, in a room, in a city).
On: Used for flat surfaces (on a table, on the wall, on the floor).
At: Used for specific points or exact addresses (at the door, at the park, at the station).
By / Next to: Used when something is near or beside another thing.

Prepositions of Time

In: Used for months, years, centuries, and long periods (in July, in 2026).
On: Used for specific days and dates (on Monday, on May 5th).
At: Used for exact times and holidays (at 4:00 PM, at noon, at Christmas).
By / Until: Used to show deadlines or limits (by Friday, until midnight).

Prepositions of Direction and Movement

To: Movement toward a place (go to school).
Into: Movement going inside a space (walk into the room).
Through: Moving from one side to the other of an enclosed space (walk through the tunnel).
Across: Moving over a flat surface or area (swim across the river).

in

The preposition in is a common word used to show that something is inside a space, during a time period, or inside a specific condition. It tells us where or when things happen.

Common uses of "in"

Place and Space

Use in for large spaces, closed areas, or things inside a container.

Countries and cities:: in India, in Paris
Rooms and buildings:: in the kitchen, in the store
Closed vehicles:: in a car, in a taxi
Containers:: in a box, in a bag

Time

Use in for longer blocks of time, like months, years, and seasons.

Months:: in July
Years:: in 2026
Seasons:: in winter
Parts of the day:: in the morning, in the afternoon (Note: Use at night).

Other Uses

Use in for states, clothes, or media.

Clothing:: in a red shirt
Conditions:: in trouble, in love
Media:: in the newspaper, in a book

on

The word on is used mainly to indicate a position on a flat surface, specific days and dates, public transport, or electronic media.

Common Uses of On

Surfaces:

Things touching a flat top or line.

Example: on the table, on the wall, on the floor.

Days and Dates:

Specific days of the week or calendar dates.

Example: on Monday, on July 4th, on my birthday.

Streets and Floors:

Higher levels of a building or names of roads.

Example: on Main Street, on the second floor.

Public Transport:

Large shared vehicles where you stand or walk.

Example: on a bus, on a train, on a plane.

Technology and Media:

Devices, networks, and broadcasts.

Example: on the internet, on TV, on my phone.

at

The preposition at is used to point out a specific location, a precise point in time, or a particular activity/event.

Common Uses of At

Specific Points and Locations

Use at when referring to a targeted spot or exact location.

Specific spots:: at the door, at the bus stop, at the intersection
Exact addresses:: at 45 Main Street
Establishments & Activities:: at school, at work, at a party, at the hospital

Precise Time

Use at for exact times on the clock, meal times, and specific holiday periods.

Clock times:: at 5:30 PM, at 10 o'clock
Specific points of the day:: at noon, at night, at midnight, at sunrise
Holiday periods:: at Diwali, at Christmas (referring to the general holiday season)

to

The word to is primarily used to show direction, movement toward a destination, a recipient of an action, or a limit/range.

Common Uses of "To"

Destination or Movement

Shows physical or abstract movement toward a specific point or location.

Example: I am going to the market. / He walked to the railway station.

Recipient or Person Affected

Indicates who receives an action or object.

Example: Give this letter to Ramesh. / She spoke to the manager.

Time Ranges and Deadlines

Shows the end point of a time range or time remaining before an hour.

Example: We work from 9 AM to 5 PM. / It is ten minutes to six.

Comparison or Preference

Used with verbs like prefer to indicate choices.

Example: I prefer tea to coffee.

for

The word "for" is a common preposition used to show purpose, time duration, recipient, or exchange. It connects a noun or pronoun to the rest of the sentence.

Common Uses of "For"

Purpose or Reason:

Shows why something exists or is done.

Example: I went to the store for milk.

Duration of Time:

Shows how long an action lasts.

Example: I slept for two hours.

Recipient or Beneficiary:

Shows who gets or benefits from something.

Example: This gift is for you.

Function or Use:

Explains what an object does.

Example: A pen is for writing.

Exchange or Price:

Shows trade value.

Example: I bought it for ten rupees.

Support or Agreement:

Shows being in favor of something.

Example: Are you for or against the plan?

with

The preposition with indicates accompaniment, possession, the tool/instrument used to perform an action, or feelings/manner.

Common Uses of "With"

Accompaniment or Association

Shows being together with a person, group, or thing.

Example: She is going to the park with her friends. / I live with my parents.

Instruments and Tools

Indicates the object or tool used to execute an action.

Example: Cut the apple with a knife. / He wrote the letter with a blue pen.

Possession or Features

Describes physical features, attributes, or belongings.

Example: A house with a big garden. / The man with glasses.

Emotions and Reactions

Expresses an emotional state associated with an event.

Example: She was shaking with fear. / He reacted with joy.

from

The preposition from indicates origin, starting point in time or space, distance, or separation.

Common Uses of "From"

Origin or Source

Indicates where a person, object, or piece of information comes from.

Example: I am from Chennai. / This gift is from my uncle.

Starting Time or Place

Marks the beginning point of an action, distance, or duration.

Example: The shop is open from 9 AM. / The train runs from Salem to Erode.

Separation or Prevention

Shows distance, protection, or stopping something from happening.

Example: Keep children away from fire. / Medicine protects us from diseases.

of

The word of connects nouns to show belonging, possession, part of a whole, material, or cause.

Common Uses of "Of"

Belonging and Possession

Shows ownership or association.

Example: The capital of India is New Delhi. / The roof of the house.

Part of a Whole or Amount

Refers to a portion, unit, or measurement of something.

Example: A slice of bread. / Most of the students passed the exam.

Made From / Substance

Identifies the material used to construct an object.

Example: A table made of wood. / A ring made of gold.

about

The preposition about is used to mean "on the subject of" or "approximately / around".

Common Uses of "About"

Subject or Topic

Indicates the main topic or theme of a conversation, book, movie, or thought.

Example: We are talking about the new project. / I read a book about space.

Approximation (Estimation)

Means "roughly" or "nearly" when referring to numbers, time, or measurements.

Example: It is about 5 o'clock. / There were about 50 people at the meeting.

by

The word "by" is most commonly a preposition, but it can also function as an adverb depending on how it is used in a sentence. When it comes before a noun, pronoun, or noun phrase to show place, time, or method, it is a preposition. When it modifies a verb to show motion passing something, it is an adverb.

Common Uses as a Preposition

Location (near or next to):

She lives by the park.

Time (deadline):

Please finish it by Friday.

Agent (who did the action):

The book was written by him.

Method (how something is done):

Send the file by email.

Use as an Adverb

Passing by:

He walked by without speaking.

Time passing:

The days went by fast.

Common Mistakes to Avoid - தவிர்க்க வேண்டிய தவறுகள்

❌ I am going to home.
✅ I am going home.
('Home' என்ற வார்த்தைக்கு முன் 'to' என்ற preposition பயன்படுத்தக் கூடாது.)
❌ He is married with a doctor.
✅ He is married to a doctor.
('Married' என்னும் வார்த்தைக்குப் பின் 'with' வராது; 'to' மட்டுமே வர வேண்டும்.)
❌ She goes to office by foot.
✅ She goes to office on foot.
(நடந்து செல்வதைக் குறிப்பிடும்போது 'on foot' என்றே கூற வேண்டும், 'by foot' அல்ல.)
❌ I am waiting for long time.
✅ I am waiting for a long time.
(நீண்ட நேரம் எனக் குறிப்பிடும்போது 'a long time' எனக் கூற வேண்டும்.)
❌ The cat is sitting under the sun.
✅ The cat is sitting in the sun.
(வெயிலில் இருப்பதைக் குறிப்பிட 'in the sun' என்று கூற வேண்டும், 'under the sun' அல்ல.)
❌ We discussed about the problem.
✅ We discussed the problem.
('Discuss' என்ற வினைச்சொல்லைத் தொடர்ந்து 'about' என்ற வார்த்தை வரக் கூடாது.)
❌ I will meet you on next Monday.
✅ I will meet you next Monday.
('Next', 'last', 'this' போன்ற வார்த்தைகளுக்கு முன் 'on', 'in', 'at' போன்ற Preposition-கள் வரக் கூடாது.)

Frequently Asked Questions (FAQ)

Q: "நான் சென்னையில் இருக்கிறேன்" - How to say this in English?
A: I am in Chennai. Use in for cities, countries, and large enclosed areas (பெரிய நகரங்கள் மற்றும் நாடுகளுக்கு 'in' பயன்படுத்த வேண்டும்).
Q: What is the difference between "in the bus" and "on the bus"?
A: Say "on the bus" for public transport where you can walk or stand (e.g., bus, train, plane). Say "in the car" or "in a taxi" for small personal vehicles where you must sit (நடந்து செல்லக்கூடிய பெரிய வாகனங்களுக்கு 'on' என்றும், சிறிய கார்களுக்கு 'in' என்றும் கூற வேண்டும்).
Q: "அவன் பேருந்து நிலையத்தில் நிற்கிறான்" - How to say this in English?
A: He is standing at the bus stop. Use at for specific points, precise locations, or specific addresses (குறிப்பிட்ட சுட்டிக்காட்டப்படும் இடங்களுக்கு 'at' பயன்படுத்த வேண்டும்).
Q: Should I say "in night" or "at night"?
A: Say "at night" for the general time period. However, for parts of the day, use in: in the morning, in the afternoon, and in the evening ('Night' என்பதற்கு 'at night' என்றும், பிற நேரங்களுக்கு 'in the morning/evening' என்றும் கூற வேண்டும்).
Q: "புத்தகம் மேஜை மேல் இருக்கிறது" - How to say this in English?
A: The book is on the table. Use on when an object is physically touching a surface (மேற்பரப்பைத் தொட்டுக் கொண்டிருக்கும் நிலைக்கு 'on' பயன்படுத்த வேண்டும்).
Q: Can I say "I will meet you on next Monday"?
A: No, say "I will meet you next Monday." Do not use prepositions like on, in, at before words like next, last, this, or every ('Next', 'last', 'this' போன்ற வார்த்தைகளுக்கு முன் 'on' பயன்படுத்தக் கூடாது).
Q: "நான் நடந்து பள்ளிக்குச் செல்கிறேன்" - How to say this in English?
A: I go to school on foot. Never say "by foot"; the correct idiom is always on foot (நடந்து செல்வதை 'on foot' என்றே குறிப்பிட வேண்டும், 'by foot' அல்ல).
Q: What is the difference between "go to home" and "go home"?
A: Say "go home." The noun home acts as an adverb of direction here, so do not place to before it ('Home' என்ற வார்த்தைக்கு முன் 'to' என்ற preposition வரக் கூடாது).
Q: "வெள்ளிக்கிழமைக்குள் இதை முடித்துவிடு" - How to say this in English?
A: Finish this by Friday. Use by to show a deadline or the last point by which an action must happen (காலக்கெடுவை அல்லது கடைசி நேரத்தைக் குறிப்பிட 'by' பயன்படுத்த வேண்டும்).
Q: What is the difference between "for" and "since" when talking about time?
A: Use for for a duration or length of time (e.g., "for 2 hours", "for 5 years"). Use since for a specific starting point in time (e.g., "since 9 AM", "since 2020") (கால அளவு குறிப்பிட 'for' என்றும், குறிப்பிட்ட தொடக்க நேரம் குறிப்பிட 'since' என்றும் கூற வேண்டும்).
Q: "நான் காலை 9 மணி முதல் மாலை 5 மணி வரை வேலை செய்கிறேன்" - How to say this in English?
A: I work from 9 AM to 5 PM. Use from... to... (or from... until...) to show the start and end of a time range (தொடக்க நேரம் மற்றும் முடிவு நேரத்தைக் குறிப்பிட 'from ... to' பயன்படுத்த வேண்டும்).
Q: Should I say "married with" or "married to"?
A: Always say "married to" (e.g., "He is married to a doctor"). Using "married with" is a common grammar mistake ('Married' என்னும் வார்த்தையைத் தொடர்ந்து 'to' மட்டுமே வர வேண்டும், 'with' அல்ல).
Q: "கத்தியால் பழத்தை வெட்டு" - How to say this in English?
A: Cut the fruit with a knife. Use with to indicate the tool, instrument, or object used to perform an action (ஒரு செயலை செய்யப் பயன்படுத்தும் கருவியைக் குறிப்பிட 'with' பயன்படுத்த வேண்டும்).
Q: Is it correct to say "We discussed about the issue"?
A: No, say "We discussed the issue." The verb discuss already means "talk about," so do not add the preposition about after it ('Discuss' என்ற வார்த்தைக்குப் பின் 'about' பயன்படுத்தக் கூடாது).

Practice tips

Keep practicing by saying the sentences out loud and using them in real life situations. Your command over prepositions forms a solid base for more advanced English skills.

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Prepositions in English Grammar முன்னிடைச்சொற்கள்