Declension table of ?śāśvatamandira

Neuter	Singular	Dual	Plural
Nominative	śāśvatamandiram	śāśvatamandire	śāśvatamandirāṇi
Vocative	śāśvatamandira	śāśvatamandire	śāśvatamandirāṇi
Accusative	śāśvatamandiram	śāśvatamandire	śāśvatamandirāṇi
Instrumental	śāśvatamandireṇa	śāśvatamandirābhyām	śāśvatamandiraiḥ
Dative	śāśvatamandirāya	śāśvatamandirābhyām	śāśvatamandirebhyaḥ
Ablative	śāśvatamandirāt	śāśvatamandirābhyām	śāśvatamandirebhyaḥ
Genitive	śāśvatamandirasya	śāśvatamandirayoḥ	śāśvatamandirāṇām
Locative	śāśvatamandire	śāśvatamandirayoḥ	śāśvatamandireṣu

Compound śāśvatamandira -

Adverb -śāśvatamandiram -śāśvatamandirāt