| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] must have been [adj] | 22 |
|
| 2 | [det] must have been [adj] | 22 |
|
| 3 | that must have been [adj] | 16 |
|
| 4 | [det] must have been [adj] | 16 |
|
