The characteristic of Fataḥa here is phonetic rather than a single added semantic sense: its second or third radical is often a throat consonant. Both perfect and imperfect take fatḥa on the middle radical:
فَتَحَ يَفْتَحُ
Translation: He opened; he opens.
The six throat consonants are ء، ه، ع، ح، غ، خ. This is a prominent tendency, not a claim that every verb with a throat letter must belong to Fataḥa.
LessonsProperties of the Six Basic Triliteral Forms: Contest, Transitivity, and Semantic PatternsQuiz
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Fataḥa: A Phonetic Tendency
Properties of the Six Basic Triliteral Forms: Contest, Transitivity, and Semantic Patterns
The characteristic of Fataḥa here is phonetic rather than a single added semantic sense: its second or third radical is often a throat consonant. Both perfect and imperfect take fatḥa on the middle radical:
فَتَحَ يَفْتَحُ
Translation: He opened; he opens.
The six throat consonants are ء، ه، ع، ح، غ، خ. This is a prominent tendency, not a claim that every verb with a throat letter must belong to Fataḥa.