The dual (muthannā) is a noun form based on a singular and referring to two persons or things, for example طَالِبَانِ: two students.
طَالِبٌ: one student.
طَالِبَانِ: two students in the nominative.
طَالِبَيْنِ: two students in the accusative or genitive.
Important: Not every word meaning “two” is an ordinary dual formed from a singular; this is why the text also specifies ithnān and related forms.
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Noun Case Classes: Type 5 — The Dual and Related Forms
The dual (muthannā) is a noun form based on a singular and referring to two persons or things, for example طَالِبَانِ: two students.
طَالِبٌ: one student.
طَالِبَانِ: two students in the nominative.
طَالِبَيْنِ: two students in the accusative or genitive.
Important: Not every word meaning “two” is an ordinary dual formed from a singular; this is why the text also specifies ithnān and related forms.