Declension table of ?carpayitavya

Neuter	Singular	Dual	Plural
Nominative	carpayitavyam	carpayitavye	carpayitavyāni
Vocative	carpayitavya	carpayitavye	carpayitavyāni
Accusative	carpayitavyam	carpayitavye	carpayitavyāni
Instrumental	carpayitavyena	carpayitavyābhyām	carpayitavyaiḥ
Dative	carpayitavyāya	carpayitavyābhyām	carpayitavyebhyaḥ
Ablative	carpayitavyāt	carpayitavyābhyām	carpayitavyebhyaḥ
Genitive	carpayitavyasya	carpayitavyayoḥ	carpayitavyānām
Locative	carpayitavye	carpayitavyayoḥ	carpayitavyeṣu

Compound carpayitavya -

Adverb -carpayitavyam -carpayitavyāt