Which pair gives the active then passive first-person past of خَافَ?Comprehensive Final Revision: Root Classes, Morphological Changes, Conjugations, Nouns and Verb-Form Semanticsخُفْتُ, خِفْتُخَفْتُ, خِفْتُخَافْتُ, خِيفْتُخِفْتُ, خُفْتُ