Planungsunterlage	Nominativ, Singular	nominative case, singular
	Planungsunterlage	Genitiv, Singular	genitive case, singular
	Planungsunterlage	Dativ, Singular	dative case, singular
	Planungsunterlage	Akkusativ, Singular	accusative case, singular
	Planungsunterlagen	Nominativ, Plural	nominative case, plural
	Planungsunterlagen	Genitiv, Plural	genitive case, plural
	Planungsunterlagen	Dativ, Plural	dative case, plural
	Planungsunterlagen	Akkusativ, Plural	accusative case, plural