てっきりって英語で？(#134)
1. てっきり冗談だと思っていたI totally thought it was a joke. 2. てっきり忘れられたのかと思ったI was sure I had been forgotten. 3. てっきり間に合わないと思ったけど、ギリギリ間に合ったI was convinced I wouldn’t make it, but I barely did. 4. てっきり彼が来るものだと思っていたI completely assumed he was coming. 5. てっきり別の人と勘違いしていたI totally mistook you for someone else.