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

(151) It is only Shaitan (Satan) that suggests to you the fear of his Auliya' [supporters and friends (polytheists, disbelievers in the Oneness of Allah and in His Messenger, Muhammad صلى الله عليه وسلم)]; so fear them not, but fear Me, if you are (true) believers.

(152) Allah will not leave the believers in the state in which you are now, until He distinguishes the wicked from the good. Nor will Allah disclose to you the secrets of the Ghaib (unseen), but Allah chooses of His Messengers whom He wills. So believe in Allah and His Messengers. And if you believe and fear Allah, then for you there is a great reward.

(153) Those (Jews) who said: "Verily, Allah has taken our promise not to believe in any Messenger unless he brings to us an offering which the fire (from heaven) shall devour." Say: "Verily, there came to you Messengers before me, with clear signs and even with what you speak of; why then did you kill them, if you are truthful?"

(154) Then if they reject you (O Muhammad صلى الله عليه وسلم), so were Messengers rejected before you, who came with Al-Bayyinat (clear signs, proofs, evidence) and the Scripture and the Book of Enlightenment.

(155) Everyone shall taste death. And only on the Day of Resurrection shall you be paid your wages in full. And whoever is removed away from the Fire and admitted to Paradise, he indeed is successful. The life of this world is only the enjoyment of deception (a deceiving thing).

(156) You shall certainly be tried and tested in your wealth and properties and in your personal selves, and you shall certainly hear much that will grieve you from those who received the Scripture before you (Jews and Christians) and from those who ascribe partners to Allah; but if you persevere patiently, and become Al-Muttaqun (the pious - See V.2:2) then verily, that will be a determining factor in all affairs (and that is from the great matters which you must hold on with all your efforts).

(157) And there are, certainly, among the people of the Scripture (Jews and Christians), those who believe in Allah and in that which has been revealed to you, and in that which has been revealed to them, humbling themselves before Allah. They do not sell the Verses of Allah for a little price, for them is a reward with their Lord. Surely, Allah is Swift in account.

(158) O mankind! Be dutiful to your Lord, Who created you from a single person (Adam), and from him (Adam) He created his wife [Hawwa (Eve)], and from them both He created many men and women; and fear Allah through Whom you demand (your mutual rights), and (do not cut the relations of) the wombs (kinship) . Surely, Allah is Ever an All-Watcher over you.

(159) And if you fear that you shall not be able to deal justly with the orphan-girls then marry (other) women of your choice, two or three, or four; but if you fear that you shall not be able to deal justly (with them), then only one or (the slaves) that your right hands possess. That is nearer to prevent you from doing injustice.

(160) And give to the women (whom you marry) their Mahr (obligatory bridal-money given by the husband to his wife at the time of marriage) with a good heart; but if they, of their own good pleasure, remit any part of it to you, take it, and enjoy it without fear of any harm (as Allah has made it lawful).