The word(s) "perceived" appears 4 time(s) in 4 verse(s) in Quran in Abdullah Yusuf Ali translation.

(1) (He turned in mercy also) to the three who were left behind; (they felt guilty) to such a degree that the earth seemed constrained to them, for all its spaciousness, and their (very) souls seemed straitened to them,- and they perceived that there is no fleeing from Allah (and no refuge) but to Himself. Then He turned to them, that they might repent: for Allah is Oft-Returning, Most Merciful.

(2) They plotted and planned, but We too planned, even while they perceived it not.

(3) The wife of Pharaoh said: "(Here is) joy of the eye, for me and for thee: slay him not. It may be that he will be use to us, or we may adopt him as a son." And they perceived not (what they were doing)!

(4) Now when Moses had fulfilled the term, and was travelling with his family, he perceived a fire in the direction of Mount Tur. He said to his family: "Tarry ye; I perceive a fire; I hope to bring you from there some information, or a burning firebrand, that ye may warm yourselves."