The word(s) "thought" appears 39 time(s) in 37 verse(s) in Quran in Muhammad Pickthal translation.

(31) And may punish the hypocritical men and the hypocritical women, and the idolatrous men and the idolatrous women, who think an evil thought concerning Allah. For them is the evil turn of fortune, and Allah is wroth against them and hath cursed them, and hath made ready for them hell, a hapless journey's end.

(32) Nay, but ye deemed that the messenger and the believers would never return to their own folk, and that was made fairseeming in your hearts, and ye did think an evil thought, and ye were worthless folk.

(33) When they came in unto him and said: Peace! he answered, Peace! (and thought): Folk unknown (to me).

(34) Have ye thought upon Al-Lat and Al-'Uzza

(35) Say (O Muhammad): Have ye thought: Whether Allah causeth me (Muhammad) and those with me to perish or hath mercy on us, still, who will protect the disbelievers from a painful doom?

(36) Say: Have ye thought: If (all) your water were to disappear into the earth, who then could bring you gushing water?

(37) On the day when hidden thoughts shall be searched out.