The word(s) "my" appears 609 time(s) in 451 verse(s) in Quran in Mohsin Khan translation.

(281) But you took them for a laughing stock, so much so that they made you forget my Remembrance while you used to laugh at them!

(282) And say (O Muhammad صلى الله عليه وسلم): "my Lord! Forgive and have mercy, for You are the Best of those who show mercy!"

(283) And on the Day when He will gather them together and that which they worship besides Allah [idols, angels, pious men, saints] . He will say: "Was it you who misled these my slaves or did they (themselves) stray from the (Right) Path?"

(284) And the Messenger (Muhammad صلى الله عليه وسلم) will say: "O my Lord! Verily, my people deserted this Qur'an (neither listened to it, nor acted on its laws and teachings).

(285) Thus have We made for every Prophet an enemy among the Mujrimun (disbelievers, polytheists, criminals). But Sufficient is your Lord as a Guide and Helper.

(286) Say: "No reward do I ask of you for this (that which I have brought from my Lord and its preaching), save that whosoever wills may take a Path to his Lord.

(287) Say (O Muhammad صلى الله عليه وسلم to the disbelievers): "my Lord pays attention to you only because of your invocation to Him. But now you have indeed denied (Him). So the torment will be yours for ever (inseparable, permanent punishment)."

(288) He said: "my Lord! Verily, I fear that they will belie me,

(289) "And my breast straitens, and my tongue expresses not well. So send for Harun (Aaron) (to come along with me).

(290) Musa (Moses) said: "I did it then, when I was ignorant (as regards my Lord and His Message).