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

(371) (They are) dead, not living. And they know not when they will be raised.

(372) And when it is said unto them: What hath your Lord revealed? they say: (Mere) fables of the men of old,

(373) Those before them plotted, so Allah struck at the foundations of their building, and then the roof fell down upon them from above them, and the doom came on them whence they knew not;

(374) Those whom the angels cause to die (when they are) good. They say: Peace be unto you! Enter the Garden because of what ye used to do.

(375) And Our word unto a thing, when We intend it, is only that We say unto it: Be! and it is.

(376) Are they who plan ill-deeds then secure that Allah will not cause the earth to swallow them, or that the doom will not come on them whence they know not?

(377) And whatever of comfort ye enjoy, it is from Allah. Then, when misfortune reacheth you, unto Him ye cry for help.

(378) And afterward, when He hath rid you of the misfortune, behold! a set of you attribute partners to their Lord,

(379) when if one of them receiveth tidings of the birth of a female, his face remaineth darkened, and he is wroth inwardly.

(380) If Allah were to take mankind to task for their wrong-doing, he would not leave hereon a living creature, but He reprieveth them to an appointed term, and when their term cometh they cannot put (it) off an hour nor (yet) advance (it).