Perceiving in example sentence
As she uttered these words, with incredible energy and swiftness she flew upon Lothario with the naked dagger, so manifestly bent on burying it in his breast that he was almost uncertain whether these demonstrations were real or feigned, for he was obliged to have recourse to all his skill and strength to prevent her from striking him; and with such reality did she act this strange farce and mystification that, to give it a colour of truth, she determined to stain it with her own blood; for perceiving, or pretending, that she could not wound Lothario, she said, "Fate, it seems, will not grant my just desire complete satisfaction, but it will not be able to keep me from satisfying it partially at least;" and making an effort to free the hand with the dagger which Lothario held in his grasp, she released it, and directing the point to a place where it could not inflict a deep wound, she plunged it into her left side high up close to the shoulder, and then allowed herself to fall to the ground as if in a faint.