Declension table of ?sina

Masculine	Singular	Dual	Plural
Nominative	sinaḥ	sinau	sināḥ
Vocative	sina	sinau	sināḥ
Accusative	sinam	sinau	sinān
Instrumental	sinena	sinābhyām	sinaiḥ sinebhiḥ
Dative	sināya	sinābhyām	sinebhyaḥ
Ablative	sināt	sinābhyām	sinebhyaḥ
Genitive	sinasya	sinayoḥ	sinānām
Locative	sine	sinayoḥ	sineṣu

Compound sina -

Adverb -sinam -sināt