Grammar 2026-01-05 9 min read

English Prepositions Made Simple: A Guide for ESL Professionals

Stop confusing in/on/at, interested in/about, and depend on/of. Clear rules and examples for business contexts.

Prepositions are small words that cause big problems. They don't translate directly between languages, and the "rules" often have exceptions. This guide focuses on the prepositions that matter most in business English.

Time Prepositions: In, On, At

Preposition Use for Examples
At Specific times at 3pm, at noon, at midnight
On Days and dates on Monday, on January 5th
In Months, years, periods in March, in 2024, in the morning

Memory trick: AT is the most specific, IN is the least specific. Think of them as zoom levels on a map.

Place Prepositions: In, On, At

Preposition Use for Examples
At Specific locations/addresses at the office, at 123 Main St
On Surfaces, streets on the desk, on Main Street
In Enclosed spaces, cities, countries in the room, in New York, in Japan

Common Business Preposition Mistakes

1. Interested in (not "on" or "about")

"I'm interested on this position."

"I'm interested in this position."

2. Depend on (not "of")

"It depends of the budget."

"It depends on the budget."

3. Consist of (not "from")

"The team consists from 5 people."

"The team consists of 5 people."

4. Good at (not "in")

"She's good in presentations."

"She's good at presentations."

5. Responsible for (not "of")

"I'm responsible of the marketing team."

"I'm responsible for the marketing team."

6. According to (not "according with")

"According with the report..."

"According to the report..."

Prepositions with Common Verbs

Verb Correct Preposition Example
Agreewith (person) / on (topic)I agree with you on this point
ApplyforApply for a job
ApologizeforApologize for the delay
Arriveat (place) / in (city)Arrive at the airport / in London
Askfor / aboutAsk for help / Ask about the project
BelongtoThis belongs to the finance team
BelieveinI believe in this approach
ComplainaboutComplain about the service
ConcentrateonConcentrate on priorities
FocusonFocus on the deadline
ListentoListen to feedback
Lookat / for / intoLook at this / Look for solutions / Look into it
ParticipateinParticipate in the meeting
PayforPay for the subscription
RefertoRefer to the document
ReplytoReply to the email
RespondtoRespond to the request
SearchforSearch for information
Spend (time)onSpend time on research
WaitforWait for approval

Tricky Cases

On time vs. In time

  • On time = punctual, at the scheduled time ("The meeting started on time.")
  • In time = before a deadline, not too late ("I submitted the report in time.")

At the end vs. In the end

  • At the end = at the final point ("At the end of the meeting...")
  • In the end = finally, after everything ("In the end, we decided to...")

By vs. Until

  • By = at the latest ("Please submit by Friday" = Friday or earlier)
  • Until = up to that point ("I'll be in meetings until 3pm" = continuous)

No Preposition Needed

Some verbs that need prepositions in other languages don't need them in English:

Wrong Correct
Discuss aboutDiscuss (no preposition)
Enter into the roomEnter the room
Reach to a conclusionReach a conclusion
Emphasize onEmphasize (no preposition)
Contact to someoneContact someone

Quick Reference Card

Most Common Business Prepositions:

  • Interested in
  • Responsible for
  • Depend on
  • Consist of
  • Good at
  • Focus on
  • Reply/Respond to
  • According to

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