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

(811) Say: Who gives you the sustenance from the heavens and the earth? Say: Allah. And most surely we or you are on a right way or in manifest error

(812) And they say: When will this promise be (fulfilled) if you are truthful?

(813) Say: Surely my Lord amplifies the means of subsistence for whom He pleases and straitens (for whom He pleases), but most men do not know.

(814) Say: Surely my Lord amplifies the means of subsistence for whom He pleases of His servants and straitens (them) for whom (He pleases), and whatever thing you spend, He exceeds it in reward, and He is the best of Sustainers.

(815) And those before them rejected (the truth), and these have not yet attained a tenth of what We gave them, but they gave the lie to My apostles, then how was the manifestation of My disapproval?

(816) Say: if I err, I err only against my own soul, and if I follow a right direction, it is because of what my Lord reveals to me; surely He is Hearing, Nigh.

(817) And could you see when they shall become terrified, but (then) there shall be no escape and they shall be seized upon from a near place

(818) And if they call you a liar, truly apostles before you were called liars, and to Allah are all affairs returned.

(819) O men! surely the promise of Allah is true, therefore let not the life of this world deceive you, and let not the archdeceiver deceive you respecting Allah.

(820) And Allah is He Who sends the winds so they raise a cloud, then We drive it on to a dead country, and therewith We give life to the earth after its death; even so is the quickening.