It
is necessary to master vocabulary and basic structures of the language well
enough.
In order to widen
vocabulary, the easiest way is to tackle it by topics and families. The
association of ideas achieved this way enables its retention and its use.
So as to improve
structures, mastering verbal tenses is a must at least the basic ones.
Sentences already structured can be learnt to change later some words or the
verbal tense in them. This is the best way to build sentences and then practise
as much as possible.
It is essential to
use words not independently but in complete sentences and repeat them aloud.