Declension table of pratyāyana

Neuter	Singular	Dual	Plural
Nominative	pratyāyanam	pratyāyane	pratyāyanāni
Vocative	pratyāyana	pratyāyane	pratyāyanāni
Accusative	pratyāyanam	pratyāyane	pratyāyanāni
Instrumental	pratyāyanena	pratyāyanābhyām	pratyāyanaiḥ
Dative	pratyāyanāya	pratyāyanābhyām	pratyāyanebhyaḥ
Ablative	pratyāyanāt	pratyāyanābhyām	pratyāyanebhyaḥ
Genitive	pratyāyanasya	pratyāyanayoḥ	pratyāyanānām
Locative	pratyāyane	pratyāyanayoḥ	pratyāyaneṣu

Compound pratyāyana -

Adverb -pratyāyanam -pratyāyanāt