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"heliportu" 
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| (inanimate noun) declension |  |
 
|  | indefinite | singular | plural |  
| absolutive | heliportu | heliportua | heliportuak |  
| ergative | heliportuk | heliportuak | heliportuek |  
| dative | heliporturi | heliportuari | heliportuei |  
| genitive | heliporturen | heliportuaren | heliportuen |  
| comitative | heliporturekin | heliportuarekin | heliportuekin |  
| causative | heliporturentzat | heliportuarentzat | heliportuentzat |  
| benefactive | heliporturengatik | heliportuarengatik | heliportuengatik |  
| instrumental | heliportuz | heliportuaz | heliportuez |  
| inessive | heliportutan | heliportuan | heliportuetan |  
| locative | heliportutako | heliportuko | heliportuetako |  
| allative | heliportutara | heliportura | heliportuetara |  
| terminative | heliportutaraino | heliporturaino | heliportuetaraino |  
| directive | heliportutarantz | heliporturantz | heliportuetarantz |  
| destinative | heliportutarako | heliporturako | heliportuetarako |  
| ablative | heliportutatik | heliportutik | heliportuetatik |  
| partitive | heliporturik | - | - |  
| prolative | heliportutzat | - | - |  | 
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