re: re:swaamp: how weird is this...??? aliens????
Well, OK, smartypants, if you want to be correct (dogmatic) then the word I ought to use is "syntactically" not, "grammatically" (next best thing) and certainly not "linguistically" the least appropriate expression because it is too general a coverage. Now look up these words and learn them because I'll be giving you an exam later. OK? spelling (orthography) syntax (word order) malapropism (wrong word in the common phrase) grammar (rules of declension and conjugation) linguistics (the rules and theories covering all forms of speech, including oratory)
There are many books on the subject. One which is easy enough even for your understanding of this fab language is Fowler's Modern English Usage. Go to it!