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

(401) And (it was a warning) when we told thee: Lo! thy Lord encompasseth mankind, and We appointed the sight which We showed thee as an ordeal for mankind, and (likewise) the Accursed Tree in the Qur'an. We warn them, but it increaseth them in naught save gross impiety.

(402) And when We said unto the angels: Fall down prostrate before Adam and they fell prostrate all save Iblis, he said: Shall I fall prostrate before that which Thou hast created of clay?

(403) And when harm toucheth you upon the sea, all unto whom ye cry (for succour) fail save Him (alone), but when He bringeth you safe to land, ye turn away, for man was ever thankless.

(404) On the day when We shall summon all men with their record, whoso is given his book in his right hand - such will read their book and they will not be wronged a shred.

(405) And when We make life pleasant unto man, he turneth away and is averse; and when ill toucheth him he is in despair.

(406) And naught prevented mankind from believing when the guidance came unto them save that they said: Hath Allah sent a mortal as (His) messenger?

(407) And he whom Allah guideth, he is led aright; while, as for him whom He sendeth astray, for them thou wilt find no protecting friends beside Him, and We shall assemble them on the Day of Resurrection on their faces, blind, dumb and deaf; their habitation will be hell; whenever it abateth, We increase the flame for them.

(408) That is their reward because they disbelieved Our revelations and said: when we are bones and fragments shall we, forsooth, be raised up as a new creation?

(409) And We said unto the Children of Israel after him: Dwell in the land; but when the promise of the Hereafter cometh to pass We shall bring you as a crowd gathered out of various nations.

(410) Say: Believe therein or believe not, lo! those who were given knowledge before it, when it is read unto them, fall down prostrate on their faces, adoring,