The word(s) "nay" appears 143 time(s) in 137 verse(s) in Quran in Mohsin Khan translation.

(61) nay, they have no knowledge of the Hereafter. nay, they are in doubt about it. nay, they are in complete blindness about it.

(62) nay, but they, the clear Ayat [i.e. the description and the qualities of Prophet Muhammad صلى الله عليه وسلم written in the Taurat (Torah) and the Injeel (Gospel)] are preserved in the breasts of those who have been given knowledge (among the people of the Scriptures). And none but the Zalimun (polytheists and wrongdoers) deny Our Ayat (proofs, evidence, verses, lessons, signs, revelations, etc.).

(63) And if you were to ask them: "Who sends down water (rain) from the sky, and gives life therewith to the earth after its death?" they will surely reply: "Allah." Say: "All the praises and thanks be to Allah!" nay, most of them have no sense.

(64) nay, but those who do wrong follow their own lusts without knowledge. Then who will guide him whom Allah has sent astray? And for such there will be no helpers.

(65) This is the creation of Allah. So show Me that which those (whom you worship) besides Him have created. nay, the Zalimun (polytheists, wrongdoers and those who do not believe in the Oneness of Allah) are in plain error.

(66) And when it is said to them: "Follow that which Allah has sent down", they say: "nay, we shall follow that which we found our fathers (following)." (Would they do so) even if Shaitan (Satan) invites them to the torment of the Fire?

(67) Or say they: "He (Muhammad صلى الله عليه وسلم) has fabricated it?" nay, it is the truth from your Lord, so that you may warn a people to whom no warner has come before you (O Muhammad صلى الله عليه وسلم): in order that they may be guided.

(68) And they say: "When we are (dead and become) lost in the earth, shall we indeed be created anew?" nay, but they deny the Meeting with their Lord!

(69) Has he (Muhammad صلى الله عليه وسلم) invented a lie against Allah, or is there a madness in him? nay, but those who disbelieve in the Hereafter are (themselves) in a torment, and in far error.

(70) Say (O Muhammad صلى الله عليه وسلم to polytheists and pagans): "Show me those whom you have joined with Him as partners. nay (there are not at all any partners with Him)! But He is Allah (Alone), the All-Mighty, the All-Wise."