preposition
BAD : Concerning your accommodation, there are several possibilities.
GOOD : With regard to your accommodation, there are several possibilities.
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To introduce a new topic, use with regard to, regarding, as regards, as far as ... is concerned (NOT concerning ): 'As far as food is concerned, the college has its own canteen.'
Compare: 'He was then asked several questions concerning his banking activities.' 'We got into an interesting discussion concerning the need for censorship.'