Declension table of ?vāsayitavya

Masculine	Singular	Dual	Plural
Nominative	vāsayitavyaḥ	vāsayitavyau	vāsayitavyāḥ
Vocative	vāsayitavya	vāsayitavyau	vāsayitavyāḥ
Accusative	vāsayitavyam	vāsayitavyau	vāsayitavyān
Instrumental	vāsayitavyena	vāsayitavyābhyām	vāsayitavyaiḥ vāsayitavyebhiḥ
Dative	vāsayitavyāya	vāsayitavyābhyām	vāsayitavyebhyaḥ
Ablative	vāsayitavyāt	vāsayitavyābhyām	vāsayitavyebhyaḥ
Genitive	vāsayitavyasya	vāsayitavyayoḥ	vāsayitavyānām
Locative	vāsayitavye	vāsayitavyayoḥ	vāsayitavyeṣu

Compound vāsayitavya -

Adverb -vāsayitavyam -vāsayitavyāt