The word(s) "think" appears 88 time(s) in 85 verse(s) in Quran in Mohsin Khan translation.

(61) Or do those who earn evil deeds think that We shall hold them equal with those who believe (in the Oneness of Allah - Islamic Monotheism) and do righteous good deeds, in their present life and after their death? Worst is the judgement that they make.

(62) And when it was said: "Verily, Allah's Promise is the truth, and there is no doubt about the coming of the Hour," you said: "We know not what is the Hour: we do not think it but as a conjecture, and we have no firm convincing belief (therein)."

(63) Say (O Muhammad صلى الله عليه وسلم to these pagans): "think you about all that you invoke besides Allah? Show me. What have they created of the earth? Or have they a share in (the creation of) the heavens? Bring me a Book (revealed before this), or some trace of knowledge (in support of your claims), if you are truthful!"

(64) Do they not then think deeply in the Qur'an, or are their hearts locked up (from understanding it)?

(65) Or do those in whose hearts is a disease (of hypocrisy), think that Allah will not bring to light all their hidden ill-wills?

(66) And that He may punish the Munafiqun (hypocrites), men and women, and also the Mushrikun men and women, who think evil thoughts about Allah: for them is a disgraceful torment. And the Anger of Allah is upon them, and He has cursed them and prepared Hell for them - and worst indeed is that destination.

(67) "Nay, but you thought that the Messenger (صلى الله عليه وسلم) and the believers would never return to their families, and that was made fair-seeming in your hearts, and you did think an evil thought and you became a useless people going for destruction."

(68) Who are under a cover of heedlessness (think not about the gravity of the Hereafter),

(69) On the Day when Allah will resurrect them all together (for their account); then they will swear to Him as they swear to you (O Muslims). And they think that they have something (to stand upon). Verily, they are liars!

(70) He it is Who drove out the disbelievers among the people of the Scripture (i.e. the Jews of the tribe of Banu An-Nadir) from their homes at the first gathering. You did not think that they would get out. And they thought that their fortresses would defend them from Allah! But Allah's (Torment) reached them from a place whereof they expected it not, and He cast terror into their hearts so that they destroyed their own dwellings with their own hands and the hands of the believers. Then take admonition, O you with eyes (to see).