| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been a [adj] | 5414 |
|
| 2 | must [verb] a [adj] | 783 |
|
| 3 | must [verb] been [adj] | 761 |
|
| 4 | must [verb] been a | 481 |
|
