The word(s) "by" appears 450 time(s) in 398 verse(s) in Quran in Muhammad Habib Shakir translation.

(361) by no means! surely he offers opposition to Our communications.

(362) And We have not made the wardens of the fire others than angels, and We have not made their number but as a trial for those who disbelieve, that those who have been given the book may be certain and those who believe may increase in faith, and those who have been given the book and the believers may not doubt, and that those in whose hearts is a disease and the unbelievers may say: What does Allah mean by this parable? Thus does Allah make err whom He pleases, and He guides whom He pleases, and none knows the hosts of your Lord but He Himself; and this is naught but a reminder to the mortals.

(363) Nay; I swear by the moon,

(364) Nay! I swear by the day of resurrection.

(365) Nay! I swear by the self-accusing soul.

(366) by no means! there shall be no place of refuge!

(367) We created them and made firm their make, and when We please We will bring in their place the likes of them by a change.

(368) I swear by the emissary winds, sent one after another (for men's benefit),

(369) by the raging hurricanes,

(370) Then I swear by the angels who bring down the revelation,