Declension table of ?pātraka

Neuter	Singular	Dual	Plural
Nominative	pātrakam	pātrake	pātrakāṇi
Vocative	pātraka	pātrake	pātrakāṇi
Accusative	pātrakam	pātrake	pātrakāṇi
Instrumental	pātrakeṇa	pātrakābhyām	pātrakaiḥ
Dative	pātrakāya	pātrakābhyām	pātrakebhyaḥ
Ablative	pātrakāt	pātrakābhyām	pātrakebhyaḥ
Genitive	pātrakasya	pātrakayoḥ	pātrakāṇām
Locative	pātrake	pātrakayoḥ	pātrakeṣu

Compound pātraka -

Adverb -pātrakam -pātrakāt