Declension table of ?śāpāvasāna

Neuter	Singular	Dual	Plural
Nominative	śāpāvasānam	śāpāvasāne	śāpāvasānāni
Vocative	śāpāvasāna	śāpāvasāne	śāpāvasānāni
Accusative	śāpāvasānam	śāpāvasāne	śāpāvasānāni
Instrumental	śāpāvasānena	śāpāvasānābhyām	śāpāvasānaiḥ
Dative	śāpāvasānāya	śāpāvasānābhyām	śāpāvasānebhyaḥ
Ablative	śāpāvasānāt	śāpāvasānābhyām	śāpāvasānebhyaḥ
Genitive	śāpāvasānasya	śāpāvasānayoḥ	śāpāvasānānām
Locative	śāpāvasāne	śāpāvasānayoḥ	śāpāvasāneṣu

Compound śāpāvasāna -

Adverb -śāpāvasānam -śāpāvasānāt