Declension table of ?vāśayitavya

Neuter	Singular	Dual	Plural
Nominative	vāśayitavyam	vāśayitavye	vāśayitavyāni
Vocative	vāśayitavya	vāśayitavye	vāśayitavyāni
Accusative	vāśayitavyam	vāśayitavye	vāśayitavyāni
Instrumental	vāśayitavyena	vāśayitavyābhyām	vāśayitavyaiḥ
Dative	vāśayitavyāya	vāśayitavyābhyām	vāśayitavyebhyaḥ
Ablative	vāśayitavyāt	vāśayitavyābhyām	vāśayitavyebhyaḥ
Genitive	vāśayitavyasya	vāśayitavyayoḥ	vāśayitavyānām
Locative	vāśayitavye	vāśayitavyayoḥ	vāśayitavyeṣu

Compound vāśayitavya -

Adverb -vāśayitavyam -vāśayitavyāt