Norwegian grammar is easy but there are things that must be learned in order to start forming even basic sentences. Therefore I strongly suggest that you go study the Norwegian grammatical rules to get the feeling of the language.

There are tons of sites, blogs, books, and e-books for grammar. Here you can find links to some of these resources. The first one offers brief grammatical rules as well as free exercises to practice what you have already learned. It is called "Grammatikk.no" and I am sure that you will keep coming back for as long as you study!

If you need more exercises on grammar you can visit the site of Norsklærer Karense called "Handbokigrammatikk.portfolio.no".

Also, the University of Oslo (NTNU) has a free, well-structured online course, called "NoW". The course is divided into chapters. Each chapter has several texts accompanied with audio, exercises, and step-by-step grammar.