Different conjugations of the verb 住む


「どちらにお住まいですか。」

「どちらにお住みですか。」

「どちらに住んでいますか。」

Do all of these questions mean "where do you live?" ? How are they
grammatically different? Is 「住まい 」a conjugated form of the verb 「住む 」?




> 住まう→お住まいですか  
>  住む →お住みですか

住まう has a meaning like 'to continue living'.  
Examples of such expressions include [語]{かた}らう(to continue saying([語]{かた}る))
and [移]{うつ}ろう(to continue changing([移]{うつ}る)).

That is a kind of expressions of a literary style, but お住まいですか is used better
than お住みですか  
because お住みですか is easily confused with お[済]{す}みですか that has the same
pronunciation as it.




> 住まう→お住まいですか  
>  住む →お住みですか

住まう has a meaning like 'to continue living'.  
Examples of such expressions include [語]{かた}らう(to continue saying([語]{かた}る))
and [移]{うつ}ろう(to continue changing([移]{うつ}る)).

That is a kind of expressions of a literary style, but お住まいですか is used better
than お住みですか  
because お住みですか is easily confused with お[済]{す}みですか that has the same
pronunciation as it.

