The word(s) "when" appears 1006 time(s) in 918 verse(s) in Quran in Muhammad Pickthal translation.

(551) (The Queen of Sheba) said (when she received the letter): O chieftains! Lo! there hath been thrown unto me a noble letter.

(552) She said: Lo! kings, when they enter a township, ruin it and make the honour of its people shame. Thus will they do.

(553) So when (the envoy) came unto Solomon, (the King) said: What! Would ye help me with wealth? But that which Allah hath given me is better than that which He hath given you. Nay it is ye (and not I) who exult in your gift.

(554) One with whom was knowledge of the Scripture said: I will bring it thee before thy gaze returneth unto thee. And when he saw it set in his presence, (Solomon) said: This is of the bounty of my Lord, that He may try me whether I give thanks or am ungrateful. Whosoever giveth thanks he only giveth thanks for (the good of) his own soul; and whosoever is ungrateful (is ungrateful only to his own soul's hurt). For lo! my Lord is Absolute in independence, Bountiful.

(555) So, when she came, it was said (unto her): Is thy throne like this? She said: (It is) as though it were the very one. And (Solomon said): We were given the knowledge before her and we had surrendered (to Allah).

(556) It was said unto her: Enter the hall. And when she saw it she deemed it a pool and bared her legs. (Solomon) said: Lo! it is a hall, made smooth, of glass. She said: My Lord! Lo! I have wronged myself, and I surrender with Solomon unto Allah, the Lord of the Worlds.

(557) And Lot! when he said unto his folk: Will ye commit abomination knowingly?

(558) Is not He (best) Who answereth the wronged one when he crieth unto Him and removeth the evil, and hath made you viceroys of the earth? Is there any Allah beside Allah? Little do they reflect!

(559) Say (O Muhammad): None in the heavens and the earth knoweth the Unseen save Allah; and they know not when they will be raised (again).

(560) Yet those who disbelieve say: when we have become dust like our fathers, shall we verily be brought forth (again)?