The word(s) "when" appears 708 time(s) in 647 verse(s) in Quran in Abdullah Yusuf Ali translation.

(331) when Our Clear Signs are rehearsed to them, thou wilt notice a denial on the faces of the Unbelievers! they nearly attack with violence those who rehearse Our Signs to them. Say, "Shall I tell you of something (far) worse than these Signs? It is the Fire (of Hell)! Allah has promised it to the Unbelievers! and evil is that destination!"

(332) So We inspired him (with this message): "Construct the Ark within Our sight and under Our guidance: then when comes Our Command, and the fountains of the earth gush forth, take thou on board pairs of every species, male and female, and thy family- except those of them against whom the Word has already gone forth: And address Me not in favour of the wrong-doers; for they shall be drowned (in the Flood).

(333) And when thou hast embarked on the Ark - thou and those with thee,- say: "Praise be to Allah, Who has saved us from the people who do wrong."

(334) "Does he promise that when ye die and become dust and bones, ye shall be brought forth (again)?

(335) Until, when We seize in Punishment those of them who received the good things of this world, behold, they will groan in supplication!

(336) They say: "What! when we die and become dust and bones, could we really be raised up again?

(337) (In Falsehood will they be) Until, when death comes to one of them, he says: "O my Lord! send me back (to life),-

(338) Then when the Trumpet is blown, there will be no more relationships between them that Day, nor will one ask after another!

(339) Why did not the believers - men and women - when ye heard of the affair,- put the best construction on it in their own minds and say, "This (charge) is an obvious lie"?

(340) Why did they not bring four witnesses to prove it? when they have not brought the witnesses, such men, in the sight of Allah, (stand forth) themselves as liars!