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Lesson 16: The Dual (اَلْمُثَنَّى) Next
Lesson 16: ▶ Part 1: The Dual (اَلْمُثَنَّى) Part 2 Part 3 Dialogue Exercises Vocabulary

Exactly Two!

In English, we have Singular (one item) and Plural (two or more). But in Arabic, "Two" gets its very own special category! It's called Al-Muthanna (The Dual). Let's learn the suffix that turns "a book" into "two books".

1. The Magic Suffix: "-aani"

To make any singular noun refer to exactly two things, remove the Tanween `ٌ` and add the suffix اَانِ (-aani) to the end of the word.

Singular (One)
كِتَابٌ
Kitaabun
A book
+
The Dual Suffix
ـَانِ
-aani
(Exactly Two)
=
The Dual (Two)
كِتَابَانِ
Kitaabaani
Two books
Spelling Rule: Notice that the final letter of the singular noun opens up with a Fatha `َ` to connect to the new Alif. Kitaab-un becomes Kitaaba-aani!

2. Dual Transformation Grid

Watch how singular nouns (both male and female) transform into pairs.

Singular (One) Dual (Two) Translation
قَلَمٌ
A pen
قَلَمَانِ
Qalamaani
Two pens
بَيْتٌ
A house
بَيْتَانِ
Baytaani
Two houses
*طَالِبَةٌ
A student (f)
طَالِبَتَانِ
Taalibataani
Two students (f)
بِنْتٌ
A girl
بِنْتَانِ
Bintaani
Two girls
Notice the Ta' Marboota (ة)! When adding the dual suffix to a feminine noun, the tied up Ta' Marboota (ة) "opens up" into a regular flat Ta' (ت) so it can connect to the Alif suffix! So Taalibatun safely becomes Taalibat-aani.

3. Adjective Matching Lab

Remember the Mirror Rule? If a noun is Dual, its adjective MUST also take the `ـَانِ` suffix to match it!

The two pens are two new (pens).
Al-qalamaani jadeedaani.
اَلْقَلَمَانِ جَدِيدَانِ
The two houses are two big (houses).
Al-baytaani kabeeraani.
اَلْبَيْتَانِ كَبِيرَانِ
The two mosques are two beautiful (mosques).
Al-masjidaani jameelaani.
اَلْمَسْجِدَانِ جَمِيلَانِ
The two female students are two new (students).
At-taalibataani jadeedataani.
اَلطَّالِبَتَانِ جَدِيدَتَانِ
The two girls are two small (girls).
Al-bintaani sagheerataani.
اَلْبِنْتَانِ صَغِيرَتَانِ
The two teachers are in the mosque.
Al-mudarrisaani fil-masjidi.
اَلْمُدَرِّسَانِ فِي الْمَسْجِدِ

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