| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been [adv] [prep] [noun] | 259 |
|
| 2 | must [verb] [adv] [prep] [noun] | 64 |
|
| 3 | must [verb] been [prep] [noun] | 39 |
|
| 4 | must [verb] been [adv] [prep] | 23 |
|
