The word(s) "nay" appears 129 time(s) in 124 verse(s) in Quran in Abdullah Yusuf Ali translation.

(61) Or, Who has made the earth firm to live in; made rivers in its midst; set thereon mountains immovable; and made a separating bar between the two bodies of flowing water? (can there be another) god besides Allah? nay, most of them know not.

(62) Still less can their knowledge comprehend the Hereafter: nay, they are in doubt and uncertainty thereanent; nay, they are blind thereunto!

(63) nay, here are Signs self-evident in the hearts of those endowed with knowledge: and none but the unjust reject Our Signs.

(64) nay, the wrong-doers (merely) follow their own lusts, being devoid of knowledge. But who will guide those whom Allah leaves astray? To them there will be no helpers.

(65) Such is the Creation of Allah: now show Me what is there that others besides Him have created: nay, but the Transgressors are in manifest error.

(66) When they are told to follow the (Revelation) that Allah has sent down, they say: "nay, we shall follow the ways that we found our fathers (following). "What! even if it is Satan beckoning them to the Penalty of the (Blazing) Fire?

(67) Or do they say, "He has forged it"? nay, it is the Truth from thy Lord, that thou mayest admonish a people to whom no warner has come before thee: in order that they may receive guidance.

(68) And they say: "What! when we lie, hidden and lost, in the earth, shall we indeed be in a Creation renewed? nay, they deny the Meeting with their Lord.

(69) The Unbelievers say, "Never to us will come the Hour": Say, "nay! but most surely, by my Lord, it will come upon you;- by Him Who knows the unseen,- from Whom is not hidden the least little atom in the heavens or on earth: Nor is there anything less than that, or greater, but is in the Record Perspicuous:

(70) "Has he invented a falsehood against Allah, or has a spirit (seized) him?"- nay, it is those who believe not in the Hereafter, that are in (real) Penalty, and in farthest error.