● Only 2 percent of Arabic nouns are indeclinable (mabnī) and never change their visible form.
● Important indeclinable kalimahs and their cases:
Base/meaning
Nominative
Accusative
Genitive
هٰذَا (this)
هٰذَا
هٰذَا
هٰذَا
ذٰلِكَ (that)
ذٰلِكَ
ذٰلِكَ
ذٰلِكَ
الَّذِي (the one who)
الَّذِي
الَّذِي
الَّذِي
● These indeclinable kalimahs have no visible case marker. Their grammatical case is understood as nominative, accusative, or genitive from their position in the sentence.