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Which prepositions are correct?

I am {on/at/in} the railway station.
I am {on/at/in} square.

marked as duplicate by Nathan Tuggy, StoneyB, Varun Nair, shin, Andrew Oct 18 '17 at 20:11

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  • What is "square"? A square like a courtyard or plaza? – user3169 Oct 27 '14 at 0:39

I am on the railway station.

means you are on top of the railway station (like on the ceiling). Not likely.

I am at the railway station.

means you are there, location wise.

I am in the railway station.

means you are inside (the perimeter) of the railway station.

  • 2
    From the perspective of location, you've described what the three prepositions generally mean, although it's worth pointing out there are numerous idiosyncrasies, anomalies, idiomatic usages, and exceptions, particularly with on. "I am on the phone" probably doesn't mean you are on top of it, and "I am on the radio" doesn't usually mean you are on top of it either. – J.R. Oct 27 '14 at 9:00

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