| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] was a mistake | 29 |
|
| 2 | [det] [was/were] a mistake | 28 |
|
| 3 | that [was/were] a mistake | 17 |
|
| 4 | that [was/were] a mistake | 17 |
|
| 5 | this [was/were] a mistake | 11 |
|
| 6 | this [was/were] a mistake | 11 |
|
