| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be [vb pp] by the | 3646 |
|
| 2 | [modal v] be [vb pp] by the | 3646 |
|
| 3 | must be [vb pp] [prep] the | 1422 |
|
| 4 | must be [vb pp] [prep] the | 1422 |
|
| 5 | must be [vb pp] by [art] | 375 |
|
| 6 | must be [verb] by the | 251 |
|
| 7 | must be [vb pp] by the | 251 |
|
| 8 | must [be] [vb pp] by the | 251 |
|
| 9 | must be [vb pp] by the | 251 |
|
| 10 | must [be] [vb pp] by the | 251 |
|
| 11 | must be [vb pp] by the | 251 |
|
