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

(741) when Our Verses (of the Qur'an) are recited to him, he says: "Tales of the men of old!"

(742) Verily, We have tried them as We tried the people of the garden, when they swore to pluck the fruits of the (garden) in the morning,

(743) But when they saw the (garden), they said: "Verily, we have gone astray."

(744) (Remember) the Day when the Shin shall be laid bare (i.e. the Day of Resurrection) and they shall be called to prostrate themselves (to Allah), but they (hypocrites) shall not be able to do so.

(745) So wait with patience for the Decision of your Lord, and be not like the Companion of the Fish - when he cried out (to Us) while he was in deep sorrow. (See the Qur'an, Verse 21:87).

(746) And verily, those who disbelieve would almost make you slip with their eyes (through hatred) when they hear the Reminder (the Qur'an), and they say: "Verily, he (Muhammad صلى الله عليه وسلم) is a madman!"

(747) Verily, when the water rose beyond its limits [Nuh's (Noah) Flood], We carried you (mankind) in the floating [ship that was constructed by Nuh (Noah)]

(748) Then when the Trumpet will be blown with one blowing (the first one).

(749) Irritable (discontented) when evil touches him;

(750) And niggardly when good touches him.