The word(s) "if" appears 1640 time(s) in 1298 verse(s) in Quran in Mohsin Khan translation.

(1081) And gave them clear proofs in matters [by revealing to them the Taurat (Torah)]. And they differed not until after the knowledge came to them, through envy among themselves. Verily, Your Lord will judge between them on the Day of Resurrection about that wherein they used to differ.

(1082) Verily, they can avail you nothing against Allah (if He wants to punish you). Verily, the Zalimun (polytheists, wrong-doers) are Auliya' (protectors, helpers) of one another, but Allah is the Wali (Helper, Protector) of the Muttaqun (the pious. See V.2:2).

(1083) Or do those who earn evil deeds think that We shall hold them equal with those who believe (in the Oneness of Allah - Islamic Monotheism) and do righteous good deeds, in their present life and after their death? Worst is the judgement that they make.

(1084) And they say: "There is nothing but our life of this world, we die and we live and nothing destroys us except Ad-Dahr (time). And they have no knowledge of it: they only conjecture.

(1085) And when Our Clear Verses are recited to them, their argument is no other than that they say: "Bring back our (dead) fathers, if you are truthful!"

(1086) Say (to them): "Allah gives you life, then causes you to die, then He will assemble you on the Day of Resurrection about which there is no doubt. But most of mankind know not."

(1087) This, because you took the revelations of Allah (this Qur'an) in mockery, and the life of the world deceived you. So this Day, they shall not be taken out from there (Hell), nor shall they be returned to the worldly life, (so that they repent to Allah, and beg His Pardon for their sins).

(1088) Say (O Muhammad صلى الله عليه وسلم to these pagans): "Think you about all that you invoke besides Allah? Show me. What have they created of the earth? Or have they a share in (the creation of) the heavens? Bring me a Book (revealed before this), or some trace of knowledge (in support of your claims), if you are truthful!"

(1089) Or say they: "He (Muhammad صلى الله عليه وسلم) has fabricated it." Say: "if I have fabricated it? still you have no power to support me against Allah. He knows best of what you say among yourselves concerning it (i.e. this Qur'an)! Sufficient is He as a witness between me and you! And He is the Oft-Forgiving, the Most Merciful."

(1090) Say: "Tell me! if this (Qur'an) is from Allah and you deny it, and a witness from among the Children of Israel ('Abdullah bin Salam رضي الله عنه) testifies that [this Qur'an is from Allah (like the Taurat (Torah)], and he believed (embraced Islam) while you are too proud (to believe)." Verily, Allah guides not the people who are Zalimun (polytheists, disbelievers and wrong-doers).