Skills Exploiting Resources Collaborative learning Advisory service Working group Full list of pages All languages have rules which tell us how words are formed and how they are put together into sentences. These rules are the 'grammar' of the language.
Different languages have different rules.
Native speakers have known the grammar of their language from childhood, but if you are learning a foreign language you have to learn the rules in a much more conscious way. And you often need to look them up in a grammar book to find out how you say something in the foreign language. In fact, you should work with your grammar book on a regular basis. You may find, though, that grammar books contain unfamiliar technical terms. Don't be put off by them.