The word(s) "grateful" appears 63 time(s) in 57 verse(s) in Quran in Abdullah Yusuf Ali translation.

(11) Thus did We try some of them by comparison with others, that they should say: "Is it these then that Allah hath favoured from amongst us?" Doth not Allah know best those who are grateful?

(12) From the land that is clean and good, by the will of its Cherisher, springs up produce, (rich) after its kind: but from the land that is bad, springs up nothing but that which is niggardly: thus do we explain the signs by various (symbols) to those who are grateful.

(13) It is He Who created you from a single person, and made his mate of like nature, in order that he might dwell with her (in love). When they are united, she bears a light burden and carries it about (unnoticed). When she grows heavy, they both pray to Allah their Lord, (saying): "If Thou givest us a goodly child, we vow we shall (ever) be grateful."

(14) Call to mind when ye were a small (band), despised through the land, and afraid that men might despoil and kidnap you; But He provided a safe asylum for you, strengthened you with His aid, and gave you Good things for sustenance: that ye might be grateful.

(15) And what think those who invent lies against Allah, of the Day of Judgment? Verily Allah is full of bounty to mankind, but most of them are ungrateful.

(16) "And I follow the ways of my fathers,- Abraham, Isaac, and Jacob; and never could we attribute any partners whatever to Allah: that (comes) of the grace of Allah to us and to mankind: yet most men are not grateful.

(17) We sent Moses with Our signs (and the command). "Bring out thy people from the depths of darkness into light, and teach them to remember the Days of Allah." Verily in this there are Signs for such as are firmly patient and constant,- grateful and appreciative.

(18) And remember! your Lord caused to be declared (publicly): "If ye are grateful, I will add more (favours) unto you; But if ye show ingratitude, truly My punishment is terrible indeed."

(19) It is He Who has made the sea subject, that ye may eat thereof flesh that is fresh and tender, and that ye may extract therefrom ornaments to wear; and thou seest the ships therein that plough the waves, that ye may seek (thus) of the bounty of Allah and that ye may be grateful.

(20) And Allah has made for you mates (and companions) of your own nature, and made for you, out of them, sons and daughters and grandchildren, and provided for you sustenance of the best: will they then believe in vain things, and be ungrateful for Allah's favours?-