Declension table of ?upasthāpayitavya

Neuter	Singular	Dual	Plural
Nominative	upasthāpayitavyam	upasthāpayitavye	upasthāpayitavyāni
Vocative	upasthāpayitavya	upasthāpayitavye	upasthāpayitavyāni
Accusative	upasthāpayitavyam	upasthāpayitavye	upasthāpayitavyāni
Instrumental	upasthāpayitavyena	upasthāpayitavyābhyām	upasthāpayitavyaiḥ
Dative	upasthāpayitavyāya	upasthāpayitavyābhyām	upasthāpayitavyebhyaḥ
Ablative	upasthāpayitavyāt	upasthāpayitavyābhyām	upasthāpayitavyebhyaḥ
Genitive	upasthāpayitavyasya	upasthāpayitavyayoḥ	upasthāpayitavyānām
Locative	upasthāpayitavye	upasthāpayitavyayoḥ	upasthāpayitavyeṣu

Compound upasthāpayitavya -

Adverb -upasthāpayitavyam -upasthāpayitavyāt