よく使う確実性まとめ No Doubtとか

▼ 確実、まちがいない (強度: 大)
no doubt
definitely
bound to
・There's no doubt the merger will go ahead. The CEO will definitely be gone by the end of this year. And that's bound to cause problems at our company.

▼ ほぼ確実 (強度: 中)
pretty certain
almost certainly

▼ ありえる (強度: 弱)
in all likelihood
I'd wager
・In all likelihood, most of the changes will be in our company, not theirs. I'd wager that the two CEOs haven't discussed this in any detail.