Declension table of ?bhīṣayitavya

Neuter	Singular	Dual	Plural
Nominative	bhīṣayitavyam	bhīṣayitavye	bhīṣayitavyāni
Vocative	bhīṣayitavya	bhīṣayitavye	bhīṣayitavyāni
Accusative	bhīṣayitavyam	bhīṣayitavye	bhīṣayitavyāni
Instrumental	bhīṣayitavyena	bhīṣayitavyābhyām	bhīṣayitavyaiḥ
Dative	bhīṣayitavyāya	bhīṣayitavyābhyām	bhīṣayitavyebhyaḥ
Ablative	bhīṣayitavyāt	bhīṣayitavyābhyām	bhīṣayitavyebhyaḥ
Genitive	bhīṣayitavyasya	bhīṣayitavyayoḥ	bhīṣayitavyānām
Locative	bhīṣayitavye	bhīṣayitavyayoḥ	bhīṣayitavyeṣu

Compound bhīṣayitavya -

Adverb -bhīṣayitavyam -bhīṣayitavyāt