Pragmatics of grammar

If the semantics are interested in the own "essence of" of language units, the pragmatics is engaged in a question, how do we actively use these units. The use is much richer and unpredictable than the semantic invariant, and it is especially good in grammar whose units at first glance are extremely significant and capricious in their behavior, however, with a deeper analysis, their semantic device is relatively simple - and the actual observable whims of their behaviors are explained. General, not specifically grammatical principles of language functioning. This book is about how in grammar semantics and pragmatics interact, about why the grammar is simply arranged, and why it is not always obvious to us