| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been [verb] [det] [noun] | 868 |
|
| 2 | must [verb] [verb] [det] [noun] | 158 |
|
| 3 | must [verb] been [det] [noun] | 50 |
|
| 4 | must [verb] been [verb] [noun] | 26 |
|
| 5 | must [verb] been [verb] [det] | 17 |
|
