The Puzzle

You know that كِتَابٌ (book) is masculine. And you know its broken plural is كُتُبٌ (books). But look at these two sentences carefully — something surprising happens with the adjective!

HUMAN plural — Normal Rule

اَلطُّلَّابُ الْجُدُدُ

Al-tullaab al-judud

The new students (plural adjective)

Human plural → takes a plural adjective

NON-HUMAN plural — Golden Rule!

اَلْكُتُبُ الْجَدِيدَةُ

Al-kutub al-jadeedatu

The new books (feminine singular adjective!)

Non-human plural → takes a singular FEMININE adjective

The Golden Rule

"In Arabic grammar, any group of non-human objects or animals is treated exactly the same as ONE SINGLE FEMALE (هِيَ)."

Demonstrative

هَذِهِ ← (not هَؤُلَاءِ)

This (Feminine singular, not group)

Adjective

جَدِيدَةٌ ← (not جُدُدٌ)

New (Feminine singular, not plural)

Pronoun

هِيَ ← (not هُمْ)

She/It (Feminine singular, not they)

More Examples — Objects & Animals

Singular Noun	Plural (Broken)	Sentence With Golden Rule	Translation
كِتَابٌ Book	كُتُبٌ	هَذِهِ كُتُبٌ جَدِيدَةٌ	These are new books.
قَلَمٌ Pen	أَقْلَامٌ	هَذِهِ أَقْلَامٌ قَدِيمَةٌ	These are old pens.
بَيْتٌ House	بُيُوتٌ	اَلْبُيُوتُ كَبِيرَةٌ	The houses are big.
سَيَّارَةٌ Car	سَيَّاراتٌ	اَلسَّيَّارَاتُ جَدِيدَةٌ	The cars are new.

Practice Lab — Human vs Non-Human

Decide: does the adjective agree as PLURAL or as SINGULAR FEMININE? Tap to reveal!

اَلطُّلَّابُ الْمُجْتَهِدُونَ
HUMAN → Plural adjective

اَلطُّلَّابُ الـ___

The students are (diligent م. pl)

Tap to reveal correct form

اَلْكُتُبُ الْجَدِيدَةُ
NON-HUMAN → Sing. Fem. adjective

اَلْكُتُبُ الـ___

The books are (new)

Tap to reveal correct form

اَلطَّالِبَاتُ الْجَدِيدَاتُ
HUMAN → Plural adjective

اَلطَّالِبَاتُ الـ___

The students (F) are (new)

Tap to reveal correct form

اَلأَقْلَامُ الْقَدِيمَةُ
NON-HUMAN → Sing. Fem. adjective

اَلأَقْلَامُ الـ___

The pens are (old)

Tap to reveal correct form