Jeg ved, hvor farligt det kan være at være sammen med hende.
- I know how dangerous it can be to be with her.
Tom siger, at han ved, hvor svært det vil være at gøre det.
- Tom says he knows how difficult it'll be to do that.
За рулем невозможно быть слишком осторожным.
- You cannot be too careful when you drive a car.
Каким хорошим учёным должен быть автор, чтобы написать такую превосходную книгу!
- What a good scholar the author must be to write such a splendid book!