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

(561) O ye who believe! when the call is proclaimed to prayer on Friday (the Day of Assembly), hasten earnestly to the Remembrance of Allah, and leave off business (and traffic): That is best for you if ye but knew!

(562) And when the Prayer is finished, then may ye disperse through the land, and seek of the Bounty of Allah: and celebrate the Praises of Allah often (and without stint): that ye may prosper.

(563) But when they see some bargain or some amusement, they disperse headlong to it, and leave thee standing. Say: "The (blessing) from the Presence of Allah is better than any amusement or bargain! and Allah is the Best to provide (for all needs)."

(564) when the Hypocrites come to thee, they say, "We bear witness that thou art indeed the Messenger of Allah." Yea, Allah knoweth that thou art indeed His Messenger, and Allah beareth witness that the Hypocrites are indeed liars.

(565) when thou lookest at them, their exteriors please thee; and when they speak, thou listenest to their words. They are as (worthless as hollow) pieces of timber propped up, (unable to stand on their own). They think that every cry is against them. They are the enemies; so beware of them. The curse of Allah be on them! How are they deluded (away from the Truth)!

(566) And when it is said to them, "Come, the Messenger of Allah will pray for your forgiveness", they turn aside their heads, and thou wouldst see them turning away their faces in arrogance.

(567) But to no soul will Allah grant respite when the time appointed (for it) has come; and Allah is well acquainted with (all) that ye do.

(568) O Prophet! when ye do divorce women, divorce them at their prescribed periods, and count (accurately), their prescribed periods: And fear Allah your Lord: and turn them not out of their houses, nor shall they (themselves) leave, except in case they are guilty of some open lewdness, those are limits set by Allah: and any who transgresses the limits of Allah, does verily wrong his (own) soul: thou knowest not if perchance Allah will bring about thereafter some new situation.

(569) Thus when they fulfil their term appointed, either take them back on equitable terms or part with them on equitable terms; and take for witness two persons from among you, endued with justice, and establish the evidence (as) before Allah. Such is the admonition given to him who believes in Allah and the Last Day. And for those who fear Allah, He (ever) prepares a way out,

(570) when the Prophet disclosed a matter in confidence to one of his consorts, and she then divulged it (to another), and Allah made it known to him, he confirmed part thereof and repudiated a part. Then when he told her thereof, she said, "Who told thee this? "He said, "He told me Who knows and is well-acquainted (with all things)."