The word(s) "ages" appears 38 time(s) in 37 verse(s) in Quran in Mohsin Khan translation.

(11) Then they both proceeded, till, when they came to the people of a town, they asked them for food, but they refused to entertain them. Then they found therein a wall about to collapse and he (Khidr) set it up straight. [Musa (Moses)] said: If you had wished, surely, you could have taken wages for it!"

(12) When he said to his father and his people: "What are these images, to which you are devoted?"

(13) Whoever thinks that Allah will not help him (Muhammad صلى الله عليه وسلم) in this world and in the Hereafter, let him stretch out a rope to the ceiling and let him strangle himself. Then let him see whether his plan will remove that whereat he rages!

(14) Or is it that you (O Muhammad صلى الله عليه وسلم) ask them for some wages? But the recompense of your Lord is better, and He is the Best of those who give sustenance.

(15) And those who disbelieve say: "Why is not the Qur'an revealed to him all at once?" Thus (it is sent down in parts), that We may strengthen your heart thereby. And We have revealed it to you gradually, in stages. (It was revealed to the Prophet صلى الله عليه وسلم in 23 years.).

(16) But We created generations [after generations i.e. after Musa (Moses) عليه السلام], and long were the ages that passed over them. And you (O Muhammad صلى الله عليه وسلم) were not a dweller among the people of Madyan (Midian), reciting Our Verses to them. But it is We Who kept sending (Messengers).

(17) And among His Signs is the creation of the heavens and the earth, and the difference of your languages and colours. Verily, in that are indeed signs for men of sound knowledge.

(18) He manages and regulates (every) affair from the heavens to the earth; then it (affair) will go up to Him, in one Day, the space whereof is a thousand years of your reckoning (i.e. reckoning of our present world's time).

(19) They worked for him as he desired, (making) high rooms, images, basins as large as reservoirs, and (cooking) cauldrons fixed (in their places). "Work you, O family of Dawud (David), with thanks!" But few of My slaves are grateful.

(20) And We placed, between them and the towns which We had blessed, towns easy to be seen, and We made the stages (of journey) between them easy (saying): "Travel in them safely both by night and day."