Common mistakes
The middle radical is و or ي. It stretches into a long vowel: قَالَ: and shortens before a consonant ending and in the jussive: قُلْتُ, لَمْ يَقُلْ.
خَوِفَ → خَافَ Past: heخَوِفَتْ → خَافَتْ Past: sheخَوِفْتَ → خِفْتَ Past: you (m.)خَوِفْتُ → خِفْتُ Past: I