Single and Dual Forms
146. What is a singular noun?
147. What is a dual noun?
148. How is a dual noun formed?
149. Are there some exceptions to this rule?
150. How are maqsūr nouns made dual?
151. How are mamdūd nouns made dual?
146. A singular noun is a noun that indicates one person, one animal, or one thing. For example: نجَّار (a carpenter).
147. A dual noun is a noun that indicates two people, two animals, or two things. For example: نحَّاران (two carpenters).
148. A noun is put into the dual form by giving the last syllable a fathah and adding the dual letters which are:
• An alif and nūn that has a kasrah if the noun is in the nominative state. For example: جاءَ وَلدَانِ (two boys came)
• A yā' and nūn that has a kasrah if the noun is in the accusative or genitive case. For example: اسطدتُ عُصفرَینِ (I hunted two sparrows)
149. Yes, there are some exceptions to this rule. The exceptions are maqsūr nouns and mamdūd nouns.
150. A maqsūr noun has two cases:
• If it ends in a straight alif - the alif should be changed to a wāw and then the dual letters should be added. For example: عصا (cane) becomes عَصَو which becomes عَصَوانِ (two canes).
• If it ends in an alif maqsūrah - the alif should be changed to a yā' and then the dual letters should be added. For example: فتیَ (young man) becomes فَتي which becomes فَتَیَانِ (two young men).
151. A mamdūd noun has two cases:
• If the hamzah is a feminine hamzah - the hamzah should be changed into a wāw with a fathah and then the dual letters should be added. For example: خَصراء (green) becomes خَضراوَ which becomes خَضراوانِ.
• If the hamzah is not a feminine hamzah - the hamzah can either remain or be changed into a wāw with a fathah and then the dual letters should be added. For example سماء (sky) becomes سماء or سَماوَ which becomes سَماءَانِ or سَماوَانِ (two skies).