Declension table of sahāyatva

Neuter	Singular	Dual	Plural
Nominative	sahāyatvam	sahāyatve	sahāyatvāni
Vocative	sahāyatva	sahāyatve	sahāyatvāni
Accusative	sahāyatvam	sahāyatve	sahāyatvāni
Instrumental	sahāyatvena	sahāyatvābhyām	sahāyatvaiḥ
Dative	sahāyatvāya	sahāyatvābhyām	sahāyatvebhyaḥ
Ablative	sahāyatvāt	sahāyatvābhyām	sahāyatvebhyaḥ
Genitive	sahāyatvasya	sahāyatvayoḥ	sahāyatvānām
Locative	sahāyatve	sahāyatvayoḥ	sahāyatveṣu

Compound sahāyatva -

Adverb -sahāyatvam -sahāyatvāt