確かに書きましたよ。

sure; certain; positive; definite; reliable; trustworthy; safe; sound; firm; accurate; correct; exact; If I'm not mistaken; If I remember correctly; If I remember rightly

at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although

to write; to compose; to pen; to draw; to paint

indicates certainty, emphasis, contempt, request, etc.; used when calling out to someone; used to catch one's breath or get someone's attention; yo!