The word(s) "if" appears 1358 time(s) in 1110 verse(s) in Quran in Muhammad Habib Shakir translation.

(301) But the Shaitan made an evil suggestion to them that he might make manifest to them what had been hidden from them of their evil inclinations, and he said: Your Lord has not forbidden you this tree except that you may not both become two angels or that you may (not) become of the immortals.

(302) Then he caused them to fall by deceit; so when they tasted of the tree, their evil inclinations became manifest to them, and they both began to cover themselves with the leaves of the garden; and their Lord called out to them: Did I not forbid you both from that tree and say to you that the Shaitan is your open enemy?

(303) They said: Our Lord! We have been unjust to ourselves, and if Thou forgive us not, and have (not) mercy on us, we shall certainly be of the losers.

(304) Say: Who has prohibited the embellishment of Allah which He has brought forth for His servants and the good provisions? Say: These are for the believers in the life of this world, purely (theirs) on the resurrection day; thus do We make the communications clear for a people who know.

(305) O children of Adam! if there come to you apostles from among you relating to you My communications, then whoever shall guard (against evil) and act aright-- they shall have no fear nor shall they grieve.

(306) Who take their religion for an idle sport and a play and this life's world deceives them; so today We forsake them, as they neglected the meeting of this day of theirs and as they denied Our communications.

(307) They said: Have you come to us that we may serve Allah alone and give up what our fathers used to serve? Then bring to us what you threaten us with, if you are of the truthful ones.

(308) So they slew the she-camel and revolted against their Lord's commandment, and they said: O Salih! bring us what you threatened us with, if you are one of the apostles.

(309) And the answer of his people was no other than that they said: Turn them out of your town, surely they are a people who seek to purify (themselves).

(310) So We delivered him and his followers, except his wife; she was of those who remained behind.