Declension table of patnī

Feminine	Singular	Dual	Plural
Nominative	patnī	patnyau	patnyaḥ
Vocative	patni	patnyau	patnyaḥ
Accusative	patnīm	patnyau	patnīḥ
Instrumental	patnyā	patnībhyām	patnībhiḥ
Dative	patnyai	patnībhyām	patnībhyaḥ
Ablative	patnyāḥ	patnībhyām	patnībhyaḥ
Genitive	patnyāḥ	patnyoḥ	patnīnām
Locative	patnyām	patnyoḥ	patnīṣu

Compound patni - patnī -

Adverb -patni