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

(461) There is no blame on the blind man, nor is there blame on the lame, nor is there blame on the sick, nor on yourselves that you eat from your houses, or your fathers' houses or your mothers' houses, or your brothers' houses, or your sisters' houses, or your paternal uncles' houses, or your paternal aunts' houses, or your maternal uncles' houses, or your maternal aunts' houses, or what you possess the keys of, or your friends' (houses). It is no sin in you that you eat together or separately. So when you enter houses, greet your people with a salutation from Allah, blessed (and) goodly; thus does Allah make clear to you the communications that you may understand.

(462) Only those are believers who believe in Allah and His Apostle, and when they are with him on a momentous affair they go not away until they have asked his permission; surely they who ask your permission are they who believe in Allah and His Apostle; so when they ask your permission for some affair of theirs, give permission to whom you please of them and ask forgiveness for them from Allah; surely Allah is Forgiving, Merciful.

(463) when it shall come into their sight from a distant place, they shall hear its vehement raging and roaring.

(464) And when they are cast into a narrow place in it, bound, they shall there call out for destruction.

(465) And on the day when He shall gather them, and whatever they served besides Allah, He shall say: Was it you who led astray these My servants, or did they themselves go astray from the path?

(466) On the day when they shall see the angels, there shall be no joy on that day for the guilty, and they shall say: It is a forbidden thing totally prohibited.

(467) And on the day when the heaven shall burst asunder with the clouds, and the angels shall be sent down descending (in ranks).

(468) And the day when the unjust one shall bite his hands saying: O! would that I had taken a way with the Apostle

(469) And the people of Nuh, when they rejected the apostles, We drowned them, and made them a sign for men, and We have prepared a painful punishment for the unjust;

(470) And when they see you, they do not take you for aught but a mockery: Is this he whom Allah has raised to be an apostle?