Re:
... 'I'm positive,' used to mean 'I'm sure,' etc. is an idiom peculiar to American English. ...
'I'm positive' in the sense of 'I'm sure', etc., is - or at least at one time was - idiomatic in Canadian English as well. I seem to recall the use of 'positively' in this sense in British English but cannot give a supporting quotation.
Chris Bruce Kiel, Germany -- ------------------------------------------------------------------ To change your Lit-Ideas settings (subscribe/unsub, vacation on/off, digest on/off), visit www.andreas.com/faq-lit-ideas.html