Tunnelbahn	Nominativ, Singular	nominative case, singular
	Tunnelbahn	Genitiv, Singular	genitive case, singular
	Tunnelbahn	Dativ, Singular	dative case, singular
	Tunnelbahn	Akkusativ, Singular	accusative case, singular
	Tunnelbahnen	Nominativ, Plural	nominative case, plural
	Tunnelbahnen	Genitiv, Plural	genitive case, plural
	Tunnelbahnen	Dativ, Plural	dative case, plural
	Tunnelbahnen	Akkusativ, Plural	accusative case, plural