The word(s) "nay" appears 148 time(s) in 143 verse(s) in Quran in Muhammad Pickthal translation.

(31) And they swear by Allah their most binding oaths (that) Allah will not raise up him who dieth. nay, but it is a promise (binding) upon Him in truth, but most of mankind know not,

(32) nay, but We shall record that which he saith and prolong for him a span of torment.

(33) nay, but they will deny their worship of them, and become opponents unto them.

(34) He said: nay, do ye throw! Then lo! their cords and their staves, by their magic, appeared to him as though they ran.

(35) nay, say they, (these are but) muddled dreams; nay, he hath but invented it; nay, he is but a poet. Let him bring us a portent even as those of old (who were Allah's messengers) were sent (with portents).

(36) nay, but We hurl the true against the false, and it doth break its head and lo! it vanisheth. And yours will be woe for that which ye ascribe (unto Him).

(37) And they say: The Beneficent hath taken unto Himself a son. Be He Glorified! nay, but (those whom they call sons) are honoured slaves;

(38) nay, but it will come upon them unawares so that it will stupefy them, and they will be unable to repel it, neither will they be reprieved.

(39) Say: Who guardeth you in the night or in the day from the Beneficent? nay, but they turn away from mention of their Lord!

(40) nay, but We gave these and their fathers ease until life grew long for them. See they not how we aim to the land, reducing it of its outlying parts? Can they then be the victors?