| 100% | ITSYOU | 6 | "I can't believe we're meeting!" |
| 68% | SMALLWORLD | 10 | "I can't believe we both know him" |
| 62% | ITS | 3 | I Can't Believe ___ Not Butter! |
| 60% | OLEO | 4 | I Can't Believe It's Not Butter! product |
| 59% | SPREAD | 6 | I Can't Believe It's Not Butter, e.g. |
| 58% | DOH | 3 | "Obviously! I can't believe I forgot!" |
| 58% | DUH | 3 | "I can't believe I missed that!" |
| 58% | MEANDMYMOUTH | 12 | "I can't believe I said that" |
| 57% | ATE | 3 | "I can't believe I ___ the whole thing" |
| 57% | ATE | 3 | "I can't believe I ___ the whole thing!" |
| 57% | ATE | 3 | 'I can't believe I ___ the whole chicken!' |
| 57% | WOW | 3 | "I can't believe what I'm seeing!" |
| 57% | OMG | 3 | [I can't believe what I just read] |
| 57% | WHOLE | 5 | "I can't believe I ate the ___ thing" |
| 57% | DUH | 3 | "I can't believe I missed that question!" |
| 57% | LET | 3 | "I can't believe I ___ this happen again!" |
| 57% | NOTAGAIN | 8 | "Ugh, I can't believe this keeps happening!" |
| 55% | DUH | 3 | "I can't believe I didn't think of that!" |
| 55% | BUGEYES | 7 | "I can't believe what I'm seeing!" facial reaction |
| 54% | ATE | 3 | "I can't believe I ___ the whole thing!" ("I'm stuffed!") |
| 54% | OHNO | 4 | "I can't believe this is happening to me!": 2 wds. |
| 53% | ATE | 3 | "I can't believe I ___ the whole thing" ("I'm so stuffed!") |
| 53% | ATE | 3 | "I can't believe I ___ the whole thing!" (Alka-Seltzer ad line) |
| 53% | FABIO | 5 | Onetime spokesmodel for I Can't Believe It's Not Butter |
| 53% | PFFT | 4 | "You can't expect me to believe that!" |
| 53% | SOMEPEOPLE | 10 | “I personally can’t imagine acting like that, but I guess we’re all different” |
| 53% | IATE | 4 | "I can't believe ___..." |
| 53% | IATE | 4 | "I can't believe _____..." |
| 53% | ATE | 3 | "I can't believe I ___ the whole thing!" (old Alka-Seltzer ad line) |
| 53% | ATE | 3 | "I can't believe I ___ the whole thing!" (classic Alka-Seltzer ad line) |