| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must [be] [verb] | 3135 |
|
| 2 | [pron] must [be] [vb pp] | 2575 |
|
| 3 | [pron] [vb mod] [be] seen | 1036 |
|
| 4 | [pron] [modal v] [be] seen | 1036 |
|
| 5 | [pron] must [be] see | 44 |
|
| 6 | [pron] must [be] seen | 43 |
|
