The Preposition Triangle In vs On vs At

Added: 2026-05-16

[00:00:00]In, on, at. If you're confused, you just need to think of a triangle.

[00:00:05]Let's break it down. The top floor belongs to in. In is used for big things, years, months, or whole cities.

[00:00:13]For example, in 2024, in Paris, in April. Moving down to on. On is more specific. It is used for days and streets. Some examples are on Monday, on Main Street, on my birthday. The tip of the triangle is at. Use it for exact points, specific times, or addresses. An example, at 5:00 p.m., at the park, at 123 Maple Street. Big to small, in, on, at. Now, tell me, are you in, on, or at your house right now?

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