The word(s) "constant" appears 10 time(s) in 10 verse(s) in Quran in Mohsin Khan translation.

(1) Among the people of the Scripture (Jews and Christians) is he who, if entrusted with a Qintar (a great amount of wealth, etc.), will readily pay it back; and among them there is he who, if entrusted with a single silver coin, will not repay it unless you constantly stand demanding, because they say: "There is no blame on us to betray and take the properties of the illiterates (Arabs)." But they tell a lie against Allah while they know it.

(2) And this (the Qur'an) is a blessed Book which We have sent down, confirming (the revelations) which came before it, so that you may warn the Mother of Towns (i.e. Makkah) and all those around it. Those who believe in the Hereafter believe in it (the Qur'an), and they are constant in guarding their Salat (prayers).

(3) And He has made the sun and the moon, both constantly pursuing their courses, to be of service to you; and He has made the night and the day, to be of service to you.

(4) Lord of the heavens and the earth, and all that is between them, so worship Him (Alone) and be constant and patient in His worship. Do you know of any who is similar to Him? (of course none is similar or co-equal or comparable to Him, and He has none as partner with Him). [There is nothing like Him and He is the All-Hearer, the All-Seer].

(5) And verily, I am indeed forgiving to him who repents, believes (in My Oneness, and associates none in worship with Me) and does righteous good deeds, and then remains constant in doing them, (till his death).

(6) "He would have nearly misled us from our alihah (gods), had it not been that we were patient and constant in their worship!" And they will know when they see the torment, who it is that is most astray from the (Right) Path!

(7) Outcast, and theirs is a constant (or painful) torment.

(8) And the leaders among them went about (saying): "Go on, and remain constant to your alihah (gods)! Verily, this is a thing designed (against you)!

(9) And by water flowing constantly,

(10) Those who remain constant in their Salat (prayers);