| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] must have been [adj] | 29 |
|
| 2 | [adj] must have been [adj] | 23 |
|
| 3 | [det] must have been [adj] | 22 |
|
| 4 | that must have been [adj] | 16 |
|
| 5 | that must have been [adj] | 16 |
|
| 6 | [adj] must have been [adj] | 6 |
|
