Declension table of ?sāhayitavya

Neuter	Singular	Dual	Plural
Nominative	sāhayitavyam	sāhayitavye	sāhayitavyāni
Vocative	sāhayitavya	sāhayitavye	sāhayitavyāni
Accusative	sāhayitavyam	sāhayitavye	sāhayitavyāni
Instrumental	sāhayitavyena	sāhayitavyābhyām	sāhayitavyaiḥ
Dative	sāhayitavyāya	sāhayitavyābhyām	sāhayitavyebhyaḥ
Ablative	sāhayitavyāt	sāhayitavyābhyām	sāhayitavyebhyaḥ
Genitive	sāhayitavyasya	sāhayitavyayoḥ	sāhayitavyānām
Locative	sāhayitavye	sāhayitavyayoḥ	sāhayitavyeṣu

Compound sāhayitavya -

Adverb -sāhayitavyam -sāhayitavyāt