هَذَانِ كِتَابَانِ.
These are two books.
Hādhāni is a nominative dual demonstrative; kitābāni is the nominative predicate of the nominal sentence.
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A Full Example with Books
The Dual Noun: Inflection, Maqṣūr, Mamdūd and Iḍāfah
هَذَانِ كِتَابَانِ.
These are two books.
Hādhāni is a nominative dual demonstrative; kitābāni is the nominative predicate of the nominal sentence.