Declension table of śāśvata

Neuter	Singular	Dual	Plural
Nominative	śāśvatam	śāśvate	śāśvatāni
Vocative	śāśvata	śāśvate	śāśvatāni
Accusative	śāśvatam	śāśvate	śāśvatāni
Instrumental	śāśvatena	śāśvatābhyām	śāśvataiḥ
Dative	śāśvatāya	śāśvatābhyām	śāśvatebhyaḥ
Ablative	śāśvatāt	śāśvatābhyām	śāśvatebhyaḥ
Genitive	śāśvatasya	śāśvatayoḥ	śāśvatānām
Locative	śāśvate	śāśvatayoḥ	śāśvateṣu

Compound śāśvata -

Adverb -śāśvatam -śāśvatāt