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

(691) And, O my people! What aileth me that I call you unto deliverance when ye call me unto the Fire?

(692) The Fire; they are exposed to it morning and evening; and on the day when the Hour upriseth (it is said): Cause Pharaoh's folk to enter the most awful doom.

(693) And when they wrangle in the Fire, the weak say unto those who were proud: Lo! we were a following unto you; will ye therefor rid us of a portion of the Fire?

(694) Lo! We verily do help Our messengers, and those who believe, in the life of the world and on the day when the witnesses arise,

(695) The day when their excuse availeth not the evil-doers, and theirs is the curse, and theirs the ill abode.

(696) He it is Who quickeneth and giveth death. when He ordaineth a thing, He saith unto it only: Be! and it is.

(697) when carcans are about their necks and chains. They are dragged

(698) Verily We sent messengers before thee, among them those of whom We have told thee, and some of whom We have not told thee; and it was not given to any messenger that he should bring a portent save by Allah's leave, but when Allah's commandment cometh (the cause) is judged aright, and the followers of vanity will then be lost.

(699) And when their messengers brought them clear proofs (of Allah's Sovereignty) they exulted in the knowledge they (themselves) possessed. And that which they were wont to mock befell them.

(700) Then, when they saw Our doom, they said: We believe in Allah only and reject (all) that we used to associate (with Him).