Declension table of ?ṣaṭṭayitavya

Masculine	Singular	Dual	Plural
Nominative	ṣaṭṭayitavyaḥ	ṣaṭṭayitavyau	ṣaṭṭayitavyāḥ
Vocative	ṣaṭṭayitavya	ṣaṭṭayitavyau	ṣaṭṭayitavyāḥ
Accusative	ṣaṭṭayitavyam	ṣaṭṭayitavyau	ṣaṭṭayitavyān
Instrumental	ṣaṭṭayitavyena	ṣaṭṭayitavyābhyām	ṣaṭṭayitavyaiḥ ṣaṭṭayitavyebhiḥ
Dative	ṣaṭṭayitavyāya	ṣaṭṭayitavyābhyām	ṣaṭṭayitavyebhyaḥ
Ablative	ṣaṭṭayitavyāt	ṣaṭṭayitavyābhyām	ṣaṭṭayitavyebhyaḥ
Genitive	ṣaṭṭayitavyasya	ṣaṭṭayitavyayoḥ	ṣaṭṭayitavyānām
Locative	ṣaṭṭayitavye	ṣaṭṭayitavyayoḥ	ṣaṭṭayitavyeṣu

Compound ṣaṭṭayitavya -

Adverb -ṣaṭṭayitavyam -ṣaṭṭayitavyāt