The word(s) "by" appears 750 time(s) in 615 verse(s) in Quran in Mohsin Khan translation.

(521) So I swear by the Lord of all the [three hundred and sixty-five (365)] points of sunrise and sunset in the east and the west that surely We are Able

(522) To replace them by (others) better than them; and We are not to be outrun.

(523) 'And we think that we cannot escape (the punishment of) Allah in the earth, nor can we escape Him by flight.

(524) 'And of us some are Muslims (who have submitted to Allah, after listening to this Qur'an), and of us some are Al-Qasitun (disbelievers - those who have deviated from the Right Path)'. And whosoever has embraced Islam (i.e. has become a Muslim by submitting to Allah), then such have sought the Right Path."

(525) That We might try them thereby. And whosoever turns away from the Reminder of his Lord (i.e. this Qur'an, - and practise not its laws and orders), He will cause him to enter in a severe torment (i.e. Hell).

(526) Verily, the rising by night (for Tahajjud prayer) is very hard and most potent and good for governing oneself, and most suitable for (understanding) the Word (of Allah).

(527) Verily, there is for you by day prolonged occupation with ordinary duties.

(528) And children to be by his side.

(529) And We have set none but angels as guardians of the Fire. And We have fixed their number (19) only as a trial for the disbelievers, in order that the people of the Scripture (Jews and Christians) may arrive at a certainty [that this Qur'an is the truth as it agrees with their Books regarding the number (19) which is written in the Taurat (Torah) and the Injeel (Gospel)] and that the believers may increase in Faith (as this Qur'an is the truth), and that no doubt may be left for the people of the Scripture and the believers, and that those in whose hearts is a disease (of hypocrisy) and the disbelievers may say: "What Allah intends by this (curious) example ?" Thus Allah leads astray whom He wills and guides whom He wills. And none can know the hosts of your Lord but He. And this (Hell) is nothing else than a (warning) reminder to mankind.

(530) Nay! And by the moon