Declension table of ?parṇayitavya

Neuter	Singular	Dual	Plural
Nominative	parṇayitavyam	parṇayitavye	parṇayitavyāni
Vocative	parṇayitavya	parṇayitavye	parṇayitavyāni
Accusative	parṇayitavyam	parṇayitavye	parṇayitavyāni
Instrumental	parṇayitavyena	parṇayitavyābhyām	parṇayitavyaiḥ
Dative	parṇayitavyāya	parṇayitavyābhyām	parṇayitavyebhyaḥ
Ablative	parṇayitavyāt	parṇayitavyābhyām	parṇayitavyebhyaḥ
Genitive	parṇayitavyasya	parṇayitavyayoḥ	parṇayitavyānām
Locative	parṇayitavye	parṇayitavyayoḥ	parṇayitavyeṣu

Compound parṇayitavya -

Adverb -parṇayitavyam -parṇayitavyāt