The word(s) "ought" appears 153 time(s) in 146 verse(s) in Quran in Abdullah Yusuf Ali translation.

(81) Behold, ye received it on your tongues, and said out of your mouths things of which ye had no knowledge; and ye thought it to be a light matter, while it was most serious in the sight of Allah.

(82) Be quite sure that to Allah doth belong whatever is in the heavens and on earth. Well doth He know what ye are intent upon: and one day they will be brought back to Him, and He will tell them the truth of what they did: for Allah doth know all things.

(83) "To the righteous, the Garden will be brought near,

(84) No evil ones have brought down this (Revelation):

(85) She was asked to enter the lofty Palace: but when she saw it, she thought it was a lake of water, and she (tucked up her skirts), uncovering her legs. He said: "This is but a palace paved smooth with slabs of glass." She said: "O my Lord! I have indeed wronged my soul: I do (now) submit (in Islam), with Solomon, to the Lord of the Worlds."

(86) So he saw the morning in the city, looking about, in a state of fear, when behold, the man who had, the day before, sought his help called aloud for his help (again). Moses said to him: "Thou art truly, it is clear, a quarrelsome fellow!"

(87) And he was arrogant and insolent in the land, beyond reason,- He and his hosts: they thought that they would not have to return to Us!

(88) They say: "If we were to follow the guidance with thee, we should be snatched away from our land." Have We not established for them a secure sanctuary, to which are brought as tribute fruits of all kinds,- a provision from Ourselves? but most of them understand not.

(89) Are (these two) alike?- one to whom We have made a goodly promise, and who is going to reach its (fulfilment), and one to whom We have given the good things of this life, but who, on the Day of Judgment, is to be among those brought up (for punishment)?

(90) And He is Allah: There is no god but He. To Him be praise, at the first and at the last: for Him is the Command, and to Him shall ye (all) be brought back.