The word(s) "liars" appears 28 time(s) in 28 verse(s) in Quran in Mohsin Khan translation.

(1) Verily, We took the covenant of the Children of Israel and sent Messengers to them. Whenever there came to them a Messenger with what they themselves desired not, - a group of them they called liars, and others among them they killed.

(2) Nay, it has become manifest to them what they had been concealing before. But if they were returned (to the world), they would certainly revert to that which they were forbidden. And indeed they are liars.

(3) The leaders of those who disbelieved among his people said: "Verily, we see you in foolishness, and verily, we think you are one of the liars."

(4) "And sit not on every road, threatening, and hindering from the Path of Allah those who believe in Him, and seeking to make it crooked. And remember when you were but few, and He multiplied you. And see what was the end of the Mufsidun (mischief-makers, corrupters, liars).

(5) Had it been a near gain (booty in front of them) and an easy journey, they would have followed you, but the distance (Tabuk expedition) was long for them; and they would swear by Allah, "If we only could, we would certainly have come forth with you." They destroy their ownselves, and Allah knows that they are liars.

(6) May Allah forgive you (O Muhammad صلى الله عليه وسلم). Why did you grant them leave (for remaining behind; you should have persisted as regards your order to them to proceed on Jihad ), until those who told the truth were seen by you in a clear light, and you had known the liars?

(7) And as for those who put up a mosque by way of harm and disbelief and to disunite the believers and as an outpost for those who warred against Allah and His Messenger (Muhammad صلى الله عليه وسلم) aforetime, they will indeed swear that their intention is nothing but good. Allah bears witness that they are certainly liars.

(8) And of them there are some who believe therein; and of them there are some who believe not therein, and your Lord is All-Aware of the Mufsidun (evil-doers, liars).

(9) The chiefs who disbelieved among his people said: "We see you but a man like ourselves, nor do we see any follow you but the meanest among us and they (too) followed you without thinking. And we do not see in you any merit above us, in fact we think you are liars."

(10) They [Yusuf's (Joseph) men] said: "What then shall be the penalty of him, if you are (proved to be) liars."