Declension table of ?pātivratya

Neuter	Singular	Dual	Plural
Nominative	pātivratyam	pātivratye	pātivratyāni
Vocative	pātivratya	pātivratye	pātivratyāni
Accusative	pātivratyam	pātivratye	pātivratyāni
Instrumental	pātivratyena	pātivratyābhyām	pātivratyaiḥ
Dative	pātivratyāya	pātivratyābhyām	pātivratyebhyaḥ
Ablative	pātivratyāt	pātivratyābhyām	pātivratyebhyaḥ
Genitive	pātivratyasya	pātivratyayoḥ	pātivratyānām
Locative	pātivratye	pātivratyayoḥ	pātivratyeṣu

Compound pātivratya -

Adverb -pātivratyam -pātivratyāt