Re: "To whom"

ObConlang: FWIW, Kash grammarians distinguish the following:

(acin- is the combining form < acindi 'speech' < çindi 'speak')
--acindandru high speech (absolutely correct, quite formal)
--acindevas rhetoric (lit., elegant speech, may imply baroque, affected, or
high-flown)
--acindimik ~acindici slang (lit., little speech; speech+dim.)
--acindula special forms of speech used in noble palaces (now almost obs.;
lit., gold speech)
--acinjuk (~cuk) vulgar (obscene or impolite) slang
--acingure substandard/incorrect speech (lit., low speech-- incorrect use of
cases, changes in pronunciation, overuse of -ni, use of vb+poss. for pfx+vb,
etc.)
--acimbuna ~acitamar colloquial/everyday speech (lit., house/common speech--
omission of tense sfxs., [@] for final /a/ etc.)
--acikorok speech impediment, in genl. (lit., bent/deformed speech)

And "grammar" in genl. is: acingambo (lit., correct speech)