"Do you have a modern place?"
Translation:An bhfuil áit nua-aimseartha agat?
Technically, "you" is both the singular and the plural pronoun, depending on context. "y'all" and "you guys" are also acceptable plural versions of "you". But yeah, I totally agree. It would be nice if English had a distinctive plural "you".
You have to use the interrogative participle (an in the present tense) to turn it into a question, you can't just use tone of voice to indicate a question (though as all Irish speakers are bi-lingual, and will be used to that habit from English, you might get away with it in some circumstances, it would be a form of Béarlachas).
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