Declension table of ?śakna

Masculine	Singular	Dual	Plural
Nominative	śaknaḥ	śaknau	śaknāḥ
Vocative	śakna	śaknau	śaknāḥ
Accusative	śaknam	śaknau	śaknān
Instrumental	śaknena	śaknābhyām	śaknaiḥ śaknebhiḥ
Dative	śaknāya	śaknābhyām	śaknebhyaḥ
Ablative	śaknāt	śaknābhyām	śaknebhyaḥ
Genitive	śaknasya	śaknayoḥ	śaknānām
Locative	śakne	śaknayoḥ	śakneṣu

Compound śakna -

Adverb -śaknam -śaknāt