The word(s) "ought" appears 193 time(s) in 181 verse(s) in Quran in Muhammad Habib Shakir translation.

(51) But the chiefs of those who disbelieved from among his people said: We do not consider you but a mortal like ourselves, and we do not see any have followed you but those who are the meanest of us at first thought and we do not see in you any excellence over us; nay, we deem you liars.

(52) They said: O Hud! you have not brought to us any clear argument and we are not going to desert our gods for your word, and we are not believers in you:

(53) And to Samood (We sent) their brother Salih. He said: O my people! serve Allah, you have no god other than He; He brought you into being from the earth, and made you dwell in it, therefore ask forgiveness of Him, then turn to Him; surely my Lord is Nigh, Answering.

(54) He shall lead his people on the resurrection day, and bring them down to the fire; and evil the place to which they are brought.

(55) And they brought his shirt with false blood upon it. He said: Nay, your souls have made the matter light for you, but patience is good and Allah is He Whose help is sought for against what you describe.

(56) And the Egyptian who bought him said to his wife: Give him an honorable abode, maybe he will be useful to us, or we may adopt him as a son. And thus did We establish Yusuf in the land and that We might teach him the interpretation of sayings; and Allah is the master of His affair, but most people do not know.

(57) And she in whose house he was sought to make himself yield (to her), and she made fast the doors and said: Come forward. He said: I seek Allah's refuge, surely my Lord made good my abode: Surely the unjust do not prosper.

(58) He said: She sought to make me yield (to her); and a witness of her own family bore witness: If his shirt is rent from front, she speaks the truth and he is one of the liars:

(59) She said: This is he with respect to whom you blamed me, and certainly I sought his yielding himself (to me), but he abstained, and if he does not do what I bid him, he shall certainly be imprisoned, and he shall certainly be of those who are in a state of ignominy.

(60) He said: How was your affair when you sought Yusuf to yield himself (to you)? They said: Remote is Allah (from imperfection), we knew of no evil on his part. The chief's wife said: Now has the truth become established: I sought him to yield himself (to me), and he is most surely of the truthful ones.