Declension table of ?yatavrata

Neuter	Singular	Dual	Plural
Nominative	yatavratam	yatavrate	yatavratāni
Vocative	yatavrata	yatavrate	yatavratāni
Accusative	yatavratam	yatavrate	yatavratāni
Instrumental	yatavratena	yatavratābhyām	yatavrataiḥ
Dative	yatavratāya	yatavratābhyām	yatavratebhyaḥ
Ablative	yatavratāt	yatavratābhyām	yatavratebhyaḥ
Genitive	yatavratasya	yatavratayoḥ	yatavratānām
Locative	yatavrate	yatavratayoḥ	yatavrateṣu

Compound yatavrata -

Adverb -yatavratam -yatavratāt