If you kick a ball randomly would you know how to play football? No. You can play football only if you know the grammar of the game. Apply the rules. Minimum grammar is no grammar at all. Grammar is the logic of speech, even as logic is the grammar of reason. Little Red Book of Grammar makes grammar easy. Structural grammar matters. Syntax and accidence count.Dont just know definitions; it is application that matters. The sense of language is what make the music of language.
