English Grammar for Placements
Prepositions: Rules, Usage and Exercises
Learn prepositions of time, place, direction, method, and fixed combinations with exam-focused examples.
Introduction
Preposition choice combines general spatial or temporal meaning with conventional usage. At points to a point, on to a surface or day, and in to an enclosed area or longer period, but many verb–preposition and adjective–preposition combinations must be learned as units.
Competitive exams frequently test small differences such as between and among, since and for, beside and besides, or in time and on time.
Definition
A preposition introduces a noun phrase and expresses its relationship to another part of the sentence, such as time, place, direction, cause, or method.
The definition should be applied through meaning and context. In objective examinations, two forms may appear structurally possible, but only one expresses the intended relationship accurately.
Formula and structure
Preposition + noun/pronoun/gerund
verb/adjective/noun + fixed preposition
Prepositions rules
- Use at for precise times, on for days/dates, and in for longer periods.
- Use since for a starting point and for for duration.
- A preposition is followed by an object form: between you and me.
- After a preposition, use a gerund rather than an infinitive when a verb is required.
- Learn fixed combinations such as interested in, responsible for, and depend on.
Examples with explanation
The interview begins at 10 a.m. on Monday in June.
This example demonstrates rule 1: Use at for precise times, on for days/dates, and in for longer periods.
She has worked here since 2024.
This example demonstrates rule 2: Use since for a starting point and for for duration.
He is interested in designing antennas.
This example demonstrates rule 3: A preposition is followed by an object form: between you and me.
The result depends on the input.
This example demonstrates rule 4: After a preposition, use a gerund rather than an infinitive when a verb is required.
Common mistakes
Discuss about the issue → discuss the issue.
Married with → married to.
Between you and I → between you and me.
Since three years → for three years.
Prepositions practice questions
Answer each question before opening the solution. These initial questions demonstrate the practice format; the bank is designed to expand without changing the page URL.
Multiple-choice questions
1. Choose the correct duration phrase:
- since three years
- for three years
- from three years
- at three years
Answer: for three years
2. A preposition is followed by:
- only an infinitive
- a noun phrase or gerund
- a finite clause only
- an adjective only
Answer: a noun phrase or gerund
3. Which statement about prepositions is correct?
- Use at for precise times, on for days/dates, and in for longer periods.
- Discuss about the issue → discuss the issue.
- The rule depends only on sentence length.
- No grammatical context is required.
Answer: Use at for precise times, on for days/dates, and in for longer periods.
4. Which statement about prepositions is correct?
- Use since for a starting point and for for duration.
- Married with → married to.
- The rule depends only on sentence length.
- No grammatical context is required.
Answer: Use since for a starting point and for for duration.
5. Which statement about prepositions is correct?
- A preposition is followed by an object form: between you and me.
- Between you and I → between you and me.
- The rule depends only on sentence length.
- No grammatical context is required.
Answer: A preposition is followed by an object form: between you and me.
6. Which statement about prepositions is correct?
- After a preposition, use a gerund rather than an infinitive when a verb is required.
- Since three years → for three years.
- The rule depends only on sentence length.
- No grammatical context is required.
Answer: After a preposition, use a gerund rather than an infinitive when a verb is required.
Fill in the blanks
1. Study this example and identify the rule used: “The interview begins at 10 a.m. on Monday in June.”
Answer: Use at for precise times, on for days/dates, and in for longer periods.
2. Study this example and identify the rule used: “She has worked here since 2024.”
Answer: Use since for a starting point and for for duration.
3. Study this example and identify the rule used: “He is interested in designing antennas.”
Answer: A preposition is followed by an object form: between you and me.
4. Study this example and identify the rule used: “The result depends on the input.”
Answer: After a preposition, use a gerund rather than an infinitive when a verb is required.
Error detection
1. Find or correct the error: Discuss about the issue → discuss the issue.
Explanation: Review rule: Use at for precise times, on for days/dates, and in for longer periods.
2. Find or correct the error: Married with → married to.
Explanation: Review rule: Use since for a starting point and for for duration.
3. Find or correct the error: Between you and I → between you and me.
Explanation: Review rule: A preposition is followed by an object form: between you and me.
4. Find or correct the error: Since three years → for three years.
Explanation: Review rule: After a preposition, use a gerund rather than an infinitive when a verb is required.
Prepositions interview questions
- Explain prepositions in your own words.
- What is the most important rule in prepositions?
- Give a correct workplace example involving prepositions.
- Which prepositions mistake do candidates make most often?
- How would you correct an unclear sentence involving this topic?
PDF notes
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Frequently asked questions
What is Prepositions?
A preposition introduces a noun phrase and expresses its relationship to another part of the sentence, such as time, place, direction, cause, or method.
Why is prepositions important for placement exams?
It is commonly tested through sentence correction, error detection, fill-in-the-blank, verbal ability, and interview communication tasks.
How should I study prepositions?
Understand the underlying meaning, learn the core rules, compare correct and incorrect examples, and then practise questions with explanations.
Can I save these prepositions notes as a PDF?
Yes. Use the Save PDF notes button and select Save as PDF in your browser's print dialog.