Choose the correct verb forms. a) if i won the lottery, i will/would give you half the money. b) if i am free on sunday, i will /would go to the cinema. c) i'll let you know if i find/found out what's happening. d) i know i feel better if i stop/stopped smoking. e) it will/would be a pity if he married susan. f) would/will it be all right if i invited fred?