| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been [verb] a [adj] | 773 |
|
| 2 | must [verb] been a [adj] | 202 |
|
| 3 | must [verb] [verb] a [adj] | 136 |
|
| 4 | must [verb] been [verb] [adj] | 34 |
|
| 5 | must [verb] been [verb] a | 13 |
|
