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

(521) And when they hear Al-Laghw (dirty, false, evil vain talk), they withdraw from it and say: "To us our deeds, and to you your deeds. Peace be to you. We seek not (the way of) the ignorant."

(522) And (remember) the Day when He will call to them and say: "Where are My (so-called) partners whom you used to assert?"

(523) And (remember) the Day when He (your Lord - Allah) will call to them (those who worshipped others along with Allah), and will say: "Where are My (so-called) partners, whom you used to assert?"

(524) Verily, Qarun (Korah) was of Musa's (Moses) people, but he behaved arrogantly towards them. And We gave him of the treasures, that of which the keys would have been a burden to a body of strong men. Remember when his people said to him: "Do not exult (with riches, being ungrateful to Allah). Verily Allah likes not those who exult (with riches, being ungrateful to Allah).

(525) And (remember) Ibrahim (Abraham) when he said to his people: "Worship Allah (Alone), and fear Him: that is better for you if you did but know.

(526) And (remember) Lut (Lot), when he said to his people: "You commit Al-Fahishah (sodomy - the worst sin) which none has preceded you in (committing) it in the 'Alamin (mankind and jinn)."

(527) And when Our Messengers came to Ibrahim (Abraham) with the glad tidings they said: "Verily, we are going to destroy the people of this [Lut (Lot's)] town (i.e. the town of Sodom in Palestine); truly, its people have been Zalimun [wrong-doers, polytheists disobedient to Allah, and who belied their Messenger Lut (Lot)]."

(528) And when Our Messengers came to Lut (Lot), he was grieved because of them, and felt straitened on their account. They said: "Have no fear, and do not grieve! Truly, we shall save you and your family, except your wife: she will be of those who remain behind (i.e. she will be destroyed along with those who will be destroyed from her folk).

(529) On the Day when the torment (Hell-fire) shall cover them from above them and from underneath their feet, and it will be said: "Taste what you used to do."

(530) And when they embark on a ship, they invoke Allah, making their Faith pure for Him only: but when He brings them safely to land, behold, they give a share of their worship to others .