Declension table of sāpatna

Masculine	Singular	Dual	Plural
Nominative	sāpatnaḥ	sāpatnau	sāpatnāḥ
Vocative	sāpatna	sāpatnau	sāpatnāḥ
Accusative	sāpatnam	sāpatnau	sāpatnān
Instrumental	sāpatnena	sāpatnābhyām	sāpatnaiḥ sāpatnebhiḥ
Dative	sāpatnāya	sāpatnābhyām	sāpatnebhyaḥ
Ablative	sāpatnāt	sāpatnābhyām	sāpatnebhyaḥ
Genitive	sāpatnasya	sāpatnayoḥ	sāpatnānām
Locative	sāpatne	sāpatnayoḥ	sāpatneṣu

Compound sāpatna -

Adverb -sāpatnam -sāpatnāt