| 100% | SILLYME | 7 | "What could I have been thinking?" |
| 61% | ELSE | 4 | "What ___ could I have done?" |
| 61% | ONE | 3 | What I can be |
| 61% | XXX | 3 | What I can be |
| 61% | WISTFUL | 7 | Hung up on what could have been |
| 59% | TEDLASSO | 8 | TV coach who said, “I think I literally have a better understanding of who killed Kennedy than I do what is offside” |
| 59% | SILLYME | 7 | "Gosh, what was I thinking?!" |
| 59% | DUH | 3 | I would have thought it was obvious |
| 58% | IMHO | 4 | "This is what I think," online |
| 58% | IMO | 3 | "This is what I think" letters |
| 57% | WHOME | 5 | "You think I could have done that?" |
| 57% | IMO | 3 | "This is what I think," in textspeak |
| 57% | IMO | 3 | "This is what I think," in texts |
| 57% | IMO | 3 | "This is what I think" expression: Abbr. |
| 56% | ARE | 3 | What you may have that I can't? |
| 56% | IMO | 3 | "This is what I think," in texting shorthand |
| 56% | IMO | 3 | "This is what I think," in textspeak: Abbr. |
| 56% | IMO | 3 | "This is what I think," in text: Abbr. |
| 56% | IMO | 3 | Texter's "This is what I think": Abbr. |
| 56% | IMO | 3 | "This is what I think..." in chats: Abbr. |
| 55% | MOI | 3 | "Surely you don't think it could be me?!" |
| 55% | IMO | 3 | "This is what I think" on the internet: Abbr. |
| 55% | IMO | 3 | "This is what I think," on the internet: Abbr. |
| 55% | ELSE | 4 | "What ___ could I do?" ("I had no choice") |
| 54% | IAMBI | 5 | "Whose woods these are I think I know" has four |
| 53% | DAMN | 4 | "What the hell was I thinking?" |
| 53% | SILLYME | 7 | "What was I thinking?" |
| 53% | DOH | 3 | "What was I thinking?!" |
| 53% | DOH | 3 | “What was I thinking?” |
| 53% | STUPIDME | 8 | "What was I thinking?!" |