Grammar is the set of structural rules that govern the competition of clauses, phrases, and words in any given natural language. The term refers also to the study of such rules, and this field includes morphology, syntax, and phonology, often complemented by phonetics, semantics, and pragmatics. Linguists do not normally use the term to refer to orthographical rules, although usage books and style guides that call themselves grammars may also refer to spelling and punctuation. Probably one of the easiest things about the German language, is its spelling. Once you have learned the difference between English and German pronounciation, you quickly realize that you write German pretty much as it sounds, with very few exceptions.