| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [vb pp] [adv] | 11023 |
|
| 2 | [vb mod] [be] [vb pp] [adv] | 11023 |
|
| 3 | must [be] [vb pp] [adv] | 1218 |
|
| 4 | must [be] [verb] [adv] | 838 |
|
| 5 | must [be] [vb pp] [adv] | 753 |
|
