Declension table of ?śāstratattva

Neuter	Singular	Dual	Plural
Nominative	śāstratattvam	śāstratattve	śāstratattvāni
Vocative	śāstratattva	śāstratattve	śāstratattvāni
Accusative	śāstratattvam	śāstratattve	śāstratattvāni
Instrumental	śāstratattvena	śāstratattvābhyām	śāstratattvaiḥ
Dative	śāstratattvāya	śāstratattvābhyām	śāstratattvebhyaḥ
Ablative	śāstratattvāt	śāstratattvābhyām	śāstratattvebhyaḥ
Genitive	śāstratattvasya	śāstratattvayoḥ	śāstratattvānām
Locative	śāstratattve	śāstratattvayoḥ	śāstratattveṣu

Compound śāstratattva -

Adverb -śāstratattvam -śāstratattvāt