Declension table of sapatnīka

Masculine	Singular	Dual	Plural
Nominative	sapatnīkaḥ	sapatnīkau	sapatnīkāḥ
Vocative	sapatnīka	sapatnīkau	sapatnīkāḥ
Accusative	sapatnīkam	sapatnīkau	sapatnīkān
Instrumental	sapatnīkena	sapatnīkābhyām	sapatnīkaiḥ sapatnīkebhiḥ
Dative	sapatnīkāya	sapatnīkābhyām	sapatnīkebhyaḥ
Ablative	sapatnīkāt	sapatnīkābhyām	sapatnīkebhyaḥ
Genitive	sapatnīkasya	sapatnīkayoḥ	sapatnīkānām
Locative	sapatnīke	sapatnīkayoḥ	sapatnīkeṣu

Compound sapatnīka -

Adverb -sapatnīkam -sapatnīkāt