The word(s) "when" appears 1006 time(s) in 918 verse(s) in Quran in Muhammad Pickthal translation.

(731) And they say: There is naught but our life of the world; we die and we live, and naught destroyeth us save time; when they have no knowledge whatsoever of (all) that; they do but guess.

(732) And when Our clear revelations are recited unto them their only argument is that they say: Bring (back) our fathers. then, if ye are truthful.

(733) And unto Allah belongeth the Sovereignty of the heavens and the earth; and on the day when the Hour riseth, on that day those who follow falsehood will be lost.

(734) And when it was said: Lo! Allah's promise is the truth, and there is no doubt of the Hour's coming, ye said: We know not what the Hour is. We deem it naught but a conjecture, and we are by no means convinced.

(735) And when mankind are gathered (to the Judgment) will become enemies for them, and will become deniers of having been worshipped.

(736) And when Our clear revelations are recited unto them, those who disbelieve say of the Truth when it reacheth them: This is mere magic.

(737) when before it there was the Scripture of Moses, an example and a mercy; and this is a confirming Scripture in the Arabic language, that it may warn those who do wrong and bring good tidings for the righteous.

(738) And We have commended unto man kindness toward parents. His mother beareth him with reluctance, and bringeth him forth with reluctance, and the bearing of him and the weaning of him is thirty months, till, when he attaineth full strength and reacheth forty years, he saith: My Lord! Arouse me that I may give thanks for the favour wherewith Thou hast favoured me and my parents, and that I may do right acceptable unto Thee. And be gracious unto me in the matter of my seed. Lo! I have turned unto Thee repentant, and lo! I am of those who surrender (unto Thee).

(739) And whoso saith unto his parents: Fie upon you both! Do ye threaten me that I shall be brought forth (again) when generations before me have passed away? And they twain cry unto Allah for help (and say): Woe unto thee! Believe! Lo! the promise of Allah is true. But he saith: This is naught save fables of the men of old:

(740) And on the day when those who disbelieve are exposed to the Fire (it will be said): Ye squandered your good things in the life of the world and sought comfort therein. Now this day ye are rewarded with the doom of ignominy because ye were disdainful in the land without a right, and because ye used to transgress.