The word(s) "ought" appears 205 time(s) in 189 verse(s) in Quran in Mohsin Khan translation.

(171) That Day shall you be brought to Judgement, not a secret of you will be hidden.

(172) That this is verily, the word of an honoured Messenger [i.e. Jibril (Gabriel) or Muhammad صلى الله عليه وسلم which he has brought from Allah].

(173) And Allah has brought you forth from the (dust of) earth? (Tafsir At-Tabari)

(174) 'And verily, we thought that men and jinn would not utter a lie against Allah.

(175) 'And they thought as you thought, that Allah will not send any Messenger (to mankind or jinn).

(176) 'And we have sought to reach the heaven; but found it filled with stern guards and flaming fires.

(177) 'And of us some are Muslims (who have submitted to Allah, after listening to this Qur'an), and of us some are Al-Qasitun (disbelievers - those who have deviated from the Right Path)'. And whosoever has embraced Islam (i.e. has become a Muslim by submitting to Allah), then such have sought the Right Path."

(178) Verily, he thought and plotted.

(179) Then he thought.

(180) That will be a Day of Decision! We have brought you and the men of old together!