The word(s) "concerning" appears 137 time(s) in 127 verse(s) in Quran in Muhammad Pickthal translation.

(111) Or say they: He hath invented it? Say (O Muhammad): If I have invented it, still ye have no power to support me against Allah. He is Best Aware of what ye say among yourselves concerning it. He sufficeth for a witness between me and you. And He is the Forgiving, the Merciful.

(112) Such are those on whom the Word concerning nations of the jinn and mankind which have passed away before them hath effect. Lo! they are the losers.

(113) And may punish the hypocritical men and the hypocritical women, and the idolatrous men and the idolatrous women, who think an evil thought concerning Allah. For them is the evil turn of fortune, and Allah is wroth against them and hath cursed them, and hath made ready for them hell, a hapless journey's end.

(114) Lo! ye, forsooth, are of various opinion (concerning the truth).

(115) Will ye then dispute with him concerning what he seeth?

(116) concerning which then, of the bounties of thy Lord, canst thou dispute?

(117) They will cry unto them (saying): Were we not with you? They will say: Yea, verily; but ye tempted one another, and hesitated, and doubted, and vain desires beguiled you till the ordinance of Allah came to pass; and the deceiver deceived you concerning Allah;

(118) Allah hath heard the saying of her that disputeth with thee (Muhammad) concerning her husband, and complaineth unto Allah. And Allah heareth your colloquy. Lo! Allah is Hearer, Knower.

(119) And if he had invented false sayings concerning Us,

(120) A questioner questioned concerning the doom about to fall