[Shadowulf]

今夜は雨が振ってかもしれない

it should be: 今夜、雨が降るかもしれない

good try though *thumbs up* keep it up =]
im not that good at explaination, but if you got questions about that post it in the help thread, the ones that know how to explain well (i.e. MMM, masaegu, etc) go there more often

「ひどい交通事故があったみたい。たぶん、飲酒運転者 のせいだ」

hmmmm..... im not that good at japanese, but for some reason that doesnt sound like something i think id hear in japanese =\, im not too sure though
part of me feels that its correct but another part of me is unsure ><

anyways, 平気:

ねぇ、ひろ。今日は払わなくて平気？忙しくて金持って くるの忘れちゃってさ・・明日返すから
ne Hiro. Kyou ha harawanakute heiki? isogashikute kane mottekuru no wasurechatte sa... ashita kaesu kara

Hey Hiro. Is it ok if i dont pay you today? I forgot my money coz i was rushed/busy... ill pay you back tomorrow

ill pass 機会(きかい)-machine