The word(s) "when" appears 916 time(s) in 828 verse(s) in Quran in Mohsin Khan translation.

(421) when he said to his father and his people: "What are these images, to which you are devoted?"

(422) And (remember) Nuh (Noah), when he cried (to Us) aforetime. We answered his invocation and saved him and his family from the great distress.

(423) And (remember) Dawud (David) and Sulaiman (Solomon), when they gave judgement in the case of the field in which the sheep of certain people had pastured at night; and We were witness to their judgement.

(424) And (remember) Ayyub (Job), when he cried to his Lord: "Verily, distress has seized me, and You are the Most Merciful of all those who show mercy."

(425) And (remember) Dhun-Nun (Jonah), when he went off in anger, and imagined that We shall not punish him (i.e. the calamities which had befallen him)! But he cried through the darkness (saying): La ilaha illa Anta [none has the right to be worshipped but You (O, Allah)], Glorified (and Exalted) be You [above all that (evil) they associate with You]! Truly, I have been of the wrong-doers."

(426) And (remember) Zakariyya (Zachariah), when he cried to his Lord: "O My Lord! Leave me not single (childless), though You are the Best of the inheritors."

(427) Until, when Ya'juj and Ma'juj (Gog and Magog) are let loose (from their barrier), and they swoop down from every mound.

(428) And the true promise (Day of Resurrection) shall draw near (of fulfillment). Then (when mankind is resurrected from their graves), you shall see the eyes of the disbelievers fixedly staring in horror. (They will say): "Woe to us! We were indeed heedless of this - nay, but we were Zalimun (polytheists and wrong-doers)."

(429) And (remember) the Day when We shall roll up the heaven like a scroll rolled up for books. As We began the first creation, We shall repeat it. (It is) a promise binding upon Us. Truly, We shall do it.

(430) O mankind! If you are in doubt about the Resurrection, then verily We have created you (i.e. Adam) from dust, then from a Nutfah (mixed drops of male and female sexual discharge i.e. the offspring of Adam), then from a clot (a piece of thick coagulated blood) then from a little lump of flesh - some formed and some unformed (as in the case of miscarriage) - that We may make (it) clear to you (i.e. to show you Our Power and Ability to do what We will). And We cause whom We will to remain in the wombs for an appointed term, then We bring you out as infants, then (give you growth) that you may reach your age of full strength. And among you there is he who dies (young), and among you there is he who is brought back to the miserable old age, so that he knows nothing after having known. And you see the earth barren, but when We send down water (rain) on it, it is stirred (to life), and it swells and puts forth every lovely kind (of growth).