Declension table of ?ketavya

Masculine	Singular	Dual	Plural
Nominative	ketavyaḥ	ketavyau	ketavyāḥ
Vocative	ketavya	ketavyau	ketavyāḥ
Accusative	ketavyam	ketavyau	ketavyān
Instrumental	ketavyena	ketavyābhyām	ketavyaiḥ ketavyebhiḥ
Dative	ketavyāya	ketavyābhyām	ketavyebhyaḥ
Ablative	ketavyāt	ketavyābhyām	ketavyebhyaḥ
Genitive	ketavyasya	ketavyayoḥ	ketavyānām
Locative	ketavye	ketavyayoḥ	ketavyeṣu

Compound ketavya -

Adverb -ketavyam -ketavyāt