Declension table of śāśvata

Masculine	Singular	Dual	Plural
Nominative	śāśvataḥ	śāśvatau	śāśvatāḥ
Vocative	śāśvata	śāśvatau	śāśvatāḥ
Accusative	śāśvatam	śāśvatau	śāśvatān
Instrumental	śāśvatena	śāśvatābhyām	śāśvataiḥ śāśvatebhiḥ
Dative	śāśvatāya	śāśvatābhyām	śāśvatebhyaḥ
Ablative	śāśvatāt	śāśvatābhyām	śāśvatebhyaḥ
Genitive	śāśvatasya	śāśvatayoḥ	śāśvatānām
Locative	śāśvate	śāśvatayoḥ	śāśvateṣu

Compound śāśvata -

Adverb -śāśvatam -śāśvatāt