| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] been [vb pp] [adv] [prep] | 314 |
|
| 2 | [vb mod] [verb] been [vb pp] [adv] [prep] | 314 |
|
| 3 | must [verb] been [verb] [adv] [prep] | 56 |
|
| 4 | must [verb] be [vb pp] [adv] [prep] | 42 |
|
| 5 | must [verb] [be] [vb pp] [adv] [prep] | 42 |
|
| 6 | must [verb] been [vb pp] [adv] [prep] | 41 |
|
| 7 | must [verb] [been] [vb pp] [adv] [prep] | 41 |
|
| 8 | must [verb] been [vb pp] [adv] [prep] | 41 |
|
