Declension table of ?śyāmavrata

Neuter	Singular	Dual	Plural
Nominative	śyāmavratam	śyāmavrate	śyāmavratāni
Vocative	śyāmavrata	śyāmavrate	śyāmavratāni
Accusative	śyāmavratam	śyāmavrate	śyāmavratāni
Instrumental	śyāmavratena	śyāmavratābhyām	śyāmavrataiḥ
Dative	śyāmavratāya	śyāmavratābhyām	śyāmavratebhyaḥ
Ablative	śyāmavratāt	śyāmavratābhyām	śyāmavratebhyaḥ
Genitive	śyāmavratasya	śyāmavratayoḥ	śyāmavratānām
Locative	śyāmavrate	śyāmavratayoḥ	śyāmavrateṣu

Compound śyāmavrata -

Adverb -śyāmavratam -śyāmavratāt