The word(s) "when" appears 926 time(s) in 834 verse(s) in Quran in Muhammad Habib Shakir translation.

(581) And those who were deemed weak shall say to those who were proud. Nay, (it was) planning by night and day when you told us to disbelieve in Allah and to set up likes with Him. And they shall conceal regret when they shall see the punishment; and We will put shackles on the necks of those who disbelieved; they shall not be requited but what they did.

(582) And on the day when He will gather them all together, then will He say to the angels: Did these worship you?

(583) And when Our clear communications are recited to them, they say: This is naught but a man who desires to turn you away from that which your fathers worshipped. And they say: This is naught but a lie that is forged. And those who disbelieve say of the truth when it comes to them: This is only clear enchantment.

(584) 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

(585) O men! call to mind the favor of Allah on you; is there any creator besides Allah who gives you sustenance from the heaven and the earth? There is no god but He; whence are you then turned away?

(586) And they swore by Allah with the strongest of their oaths that if there came to them a warner they would be better guided than any of the nations; but when there came to them a warner it increased them in naught but aversion.

(587) And were Allah to punish men for what they earn, He would not leave on the back of it any creature, but He respites them till an appointed term; so when their doom shall come, then surely Allah is Seeing with respect to His servants.

(588) And set out to them an example of the people of the town, when the apostles came to it.

(589) when We sent to them two, they rejected both of them, then We strengthened (them) with a third, so they said: Surely we are apostles to you.

(590) And when it is said to them: Guard against what is before you and what is behind you, that mercy may be had on you.