Declension table of ?yasitavya

Neuter	Singular	Dual	Plural
Nominative	yasitavyam	yasitavye	yasitavyāni
Vocative	yasitavya	yasitavye	yasitavyāni
Accusative	yasitavyam	yasitavye	yasitavyāni
Instrumental	yasitavyena	yasitavyābhyām	yasitavyaiḥ
Dative	yasitavyāya	yasitavyābhyām	yasitavyebhyaḥ
Ablative	yasitavyāt	yasitavyābhyām	yasitavyebhyaḥ
Genitive	yasitavyasya	yasitavyayoḥ	yasitavyānām
Locative	yasitavye	yasitavyayoḥ	yasitavyeṣu

Compound yasitavya -

Adverb -yasitavyam -yasitavyāt