Declension table of ?sphaṇḍayitavya

Neuter	Singular	Dual	Plural
Nominative	sphaṇḍayitavyam	sphaṇḍayitavye	sphaṇḍayitavyāni
Vocative	sphaṇḍayitavya	sphaṇḍayitavye	sphaṇḍayitavyāni
Accusative	sphaṇḍayitavyam	sphaṇḍayitavye	sphaṇḍayitavyāni
Instrumental	sphaṇḍayitavyena	sphaṇḍayitavyābhyām	sphaṇḍayitavyaiḥ
Dative	sphaṇḍayitavyāya	sphaṇḍayitavyābhyām	sphaṇḍayitavyebhyaḥ
Ablative	sphaṇḍayitavyāt	sphaṇḍayitavyābhyām	sphaṇḍayitavyebhyaḥ
Genitive	sphaṇḍayitavyasya	sphaṇḍayitavyayoḥ	sphaṇḍayitavyānām
Locative	sphaṇḍayitavye	sphaṇḍayitavyayoḥ	sphaṇḍayitavyeṣu

Compound sphaṇḍayitavya -

Adverb -sphaṇḍayitavyam -sphaṇḍayitavyāt