[kairai]

um..a bit difficult question.

きっと　<< this word contains speakers' wish..

when you use きっと about your own issue , it means strong will.this case "surely"

for instance , きっと明日までには仕事を終わらせます。 << I'll manage to finish my task till tomorrow.

when you use きっと about someone's issue , it means "expectation" this case "maybe"

for example..
彼はきっと仕事を明日までに終わらせてくれるよ。
<< I believe he'll finish his task till tomorrow.

um , I'm not sure whether this explanation is enough ore not..

soneone help , please ><