This post deals with conjugation of verbs that have a medial vowel (ا). They are called hollow verbs(الفعل الأجوف), e.g. (نام) ‘slept’, (باع) ‘sold’, (قام) ‘got up’, etc. In the past tense, the medial vowel disappears with some pronouns, i.e. first and second person pronouns in addition to the third person feminine plural pronoun. The examples below give examples of three verbs conjugated in the past.