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In / On / At appears in school exams and competitive exams like SSC and Bank PO English sections. Practising with exam-style questions improves accuracy and speed.

In / On / At

Prepositions elementary easy

The three most common time and place prepositions.

Prepositions — Time, place and direction prepositions.

Rules

1. Time — at: exact time (at 5 o'clock, at noon); on: days/dates (on Monday, on 15 August); in: months/years/periods (in June, in 2024, in the morning). 2. Place — at: point (at the door, at the station); on: surface (on the table); in: enclosed space (in the room, in Delhi). 3. "In the morning/afternoon/evening" but "at night". 4. "On time" (punctual) vs "in time" (before deadline). 5. No preposition before today/tomorrow/yesterday, this/next/last.

Explanation

The rule of thumb: at = point, on = surface, in = enclosed space. For time: at = clock time, on = day, in = month/year/period.

हिंदी में

At = बिंदु/समय, on = सतह/दिन, in = घिरी जगह/महीना-साल। "in the morning" पर "at night" याद रखें।

Examples

The meeting is at 10 on Monday. — मीटिंग सोमवार को 10 बजे है।
She was born in June in Delhi. — वह जून में दिल्ली में पैदा हुई थी।

Common Mistakes

{"mistake":"I will meet you in Monday.","correction":"I will meet you on Monday.","note":"Days take \"on\"."}
{"mistake":"We sleep in night.","correction":"We sleep at night.","note":"\"at night\", but \"in the morning\"."}

Practice Questions

Q1. Translate into English: "मैं रात को जल्दी सो जाता हूँ।"

Answer: I go to sleep early at night.

💡 Night takes "at".

Q2. Complete: "We have English class ___ Wednesdays."

Answer: on

💡 Days take "on".

Q3. Which sentence contains an error?

I met him in the evening.
She works on night.
We left at noon.
He arrived in the morning.

Answer: She works on night.

💡 "Night" takes "at": "at night".

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Topic	Level	What it covers
To / From	elementary	To for destination; from for origin.
Into / In	intermediate	In for position; into for movement to the inside.
By / With	intermediate	By = doer/means/transport; with = instrument/tool.
Between / Among	intermediate	Between for two; among for more than two.
Common Preposition Errors	intermediate	The most frequently misused prepositions.