Declension table of maithuna

Neuter	Singular	Dual	Plural
Nominative	maithunam	maithune	maithunāni
Vocative	maithuna	maithune	maithunāni
Accusative	maithunam	maithune	maithunāni
Instrumental	maithunena	maithunābhyām	maithunaiḥ
Dative	maithunāya	maithunābhyām	maithunebhyaḥ
Ablative	maithunāt	maithunābhyām	maithunebhyaḥ
Genitive	maithunasya	maithunayoḥ	maithunānām
Locative	maithune	maithunayoḥ	maithuneṣu

Compound maithuna -

Adverb -maithunam -maithunāt