"I cannot lose my book."
Translation:Jeg kan ikke miste boken min.
It's only 'lose' in the sense of a game. Perhaps it could work if you've been betting with your book, in that case you could 'tape' your book. That would be under very special circumstances however. A more common thing you could 'tape' would be money: "Jeg kan ikke tape pengene mine."
As a native dutch speaker I find norsk very intuitive, as most of the structures are quite similar, but in dutch the infinitive is usually placed at the end of the sentence. In german you can pretty much put it anywhere. Are the verbs usually kept as close together as possible in norsk or are you allowed to move the infinitive to the end?
Layed out as dutch this sentence would be written as "Jeg kan boken min ikke miste", is that possible in norsk?
I am still no expert but I don't think so. I've been living in Oslo for almost a year now and have never heard anyone speak in that way...