"I can not stay here."
Translation:Nem tudok itt maradni.
What I can tell as native Hungarian, I would use "nem maradhatok itt". "Nem tudok itt maradni" means to me it is impossible to stay here, but the former one means I have a good reason to leave, I have to go elsewhere. I would never say "Nem tudok itt maradni" in real life, that is something very strong and rare, like atomic catastrophe or something. The other one seems a more common phrase. Google the two in which context they appear. Literature has my version most. The other appears in popular culture only as a stron expression. Something tragic or so.