Declension table of ?caturmāsya

Neuter	Singular	Dual	Plural
Nominative	caturmāsyam	caturmāsye	caturmāsyāni
Vocative	caturmāsya	caturmāsye	caturmāsyāni
Accusative	caturmāsyam	caturmāsye	caturmāsyāni
Instrumental	caturmāsyena	caturmāsyābhyām	caturmāsyaiḥ
Dative	caturmāsyāya	caturmāsyābhyām	caturmāsyebhyaḥ
Ablative	caturmāsyāt	caturmāsyābhyām	caturmāsyebhyaḥ
Genitive	caturmāsyasya	caturmāsyayoḥ	caturmāsyānām
Locative	caturmāsye	caturmāsyayoḥ	caturmāsyeṣu

Compound caturmāsya -

Adverb -caturmāsyam -caturmāsyāt