One thing I don't understand is why do we say.
On a morning walk, why don't we say in or at. Please explain a little bit.
Outside of the basic spatial senses, preposition use in English is mostly idiomatic. Often there is no way to reliably predict which preposition is correct. Often you just have to learn the combinations that people usually use.
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Outside of the basic spatial senses, preposition use in English is mostly idiomatic. Often there is no way to reliably predict which preposition is correct. Often you just have to learn the combinations that people usually use.