Finally, careful consideration should be given to rules which govern form in relation to use and meaning. There are often exceptions to rules, but rules are also often over-generalised and may be misleading. A balance
needs to be achieved between generalisation and complexity, bearing in mind level and context.
Register and appropriacy
Particularly in the case of functional language, the analysis of target items also involves analysis of the situation and relationship between speakers (appropriacy) which in turn may govern the choice of language according to level of formality (register). This form of analysis involves three main factors: