Declension table of ?cāpayitavya

Neuter	Singular	Dual	Plural
Nominative	cāpayitavyam	cāpayitavye	cāpayitavyāni
Vocative	cāpayitavya	cāpayitavye	cāpayitavyāni
Accusative	cāpayitavyam	cāpayitavye	cāpayitavyāni
Instrumental	cāpayitavyena	cāpayitavyābhyām	cāpayitavyaiḥ
Dative	cāpayitavyāya	cāpayitavyābhyām	cāpayitavyebhyaḥ
Ablative	cāpayitavyāt	cāpayitavyābhyām	cāpayitavyebhyaḥ
Genitive	cāpayitavyasya	cāpayitavyayoḥ	cāpayitavyānām
Locative	cāpayitavye	cāpayitavyayoḥ	cāpayitavyeṣu

Compound cāpayitavya -

Adverb -cāpayitavyam -cāpayitavyāt