The word(s) "now" appears 868 time(s) in 728 verse(s) in Quran in Mohsin Khan translation.

(251) There! Every person will know (exactly) what he had earned before and they will be brought back to Allah, their rightful Maula (Lord), and their invented false deities will vanish from them.

(252) Nay, they have belied the knowledge whereof they could not comprehend and what has not yet been fulfilled (i.e. their punishment). Thus those before them did belie. Then see what was the end of the Zalimun (polytheists and wrong-doers)!

(253) Is it then that when it has actually befallen, you will believe in it? What! now (you believe)? And you used (aforetime) to hasten it on!"

(254) No doubt, surely, all that is in the heavens and the earth belongs to Allah. No doubt, surely, Allah's Promise is true. But most of them know not.

(255) And let not their speech grieve you (O Muhammad صلى الله عليه وسلم), for all power and honour belong to Allah. He is the All-Hearer, the All-Knower.

(256) They (Jews, Christians and pagans) say: "Allah has begotten a son (children)." Glory is to Him! He is Rich (Free of all needs). His is all that is in the heavens and all that is in the earth. No warrant you have for this. Do you say against Allah what you know not.

(257) Allah said: "Verily, the invocation of you both is accepted. So you both keep to the Straight Way (i.e. keep on doing good deeds and preaching Allah's Message with patience), and follow not the path of those who know not (the truth i.e. to believe in the Oneness of Allah, and also to believe in the Reward of Allah: Paradise)."

(258) now (you believe) while you refused to believe before and you were one of the Mufsidun (evil-doers, the corrupters).

(259) And indeed We settled the Children of Israel in an honourable dwelling place (Sham and Misr), and provided them with good things, and they differed not until the knowledge came to them. Verily, Allah will judge between them on the Day of Resurrection in that in which they used to differ.

(260) Say (O Muhammad صلى الله عليه وسلم): "O you mankind! If you are in doubt as to my religion (Islam), then (know that) I will never worship those whom you worship besides Allah. But I worship Allah Who causes you to die, and I am commanded to be one of the believers.