Declension table of ?gātavya

Masculine	Singular	Dual	Plural
Nominative	gātavyaḥ	gātavyau	gātavyāḥ
Vocative	gātavya	gātavyau	gātavyāḥ
Accusative	gātavyam	gātavyau	gātavyān
Instrumental	gātavyena	gātavyābhyām	gātavyaiḥ gātavyebhiḥ
Dative	gātavyāya	gātavyābhyām	gātavyebhyaḥ
Ablative	gātavyāt	gātavyābhyām	gātavyebhyaḥ
Genitive	gātavyasya	gātavyayoḥ	gātavyānām
Locative	gātavye	gātavyayoḥ	gātavyeṣu

Compound gātavya -

Adverb -gātavyam -gātavyāt