Declension table of ?āyavyaya

Neuter	Singular	Dual	Plural
Nominative	āyavyayam	āyavyaye	āyavyayāni
Vocative	āyavyaya	āyavyaye	āyavyayāni
Accusative	āyavyayam	āyavyaye	āyavyayāni
Instrumental	āyavyayena	āyavyayābhyām	āyavyayaiḥ
Dative	āyavyayāya	āyavyayābhyām	āyavyayebhyaḥ
Ablative	āyavyayāt	āyavyayābhyām	āyavyayebhyaḥ
Genitive	āyavyayasya	āyavyayayoḥ	āyavyayānām
Locative	āyavyaye	āyavyayayoḥ	āyavyayeṣu

Compound āyavyaya -

Adverb -āyavyayam -āyavyayāt