| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [verb] [verb] [pers pn] | 773 |
|
| 2 | must [verb] [vb pp] [pers pn] | 707 |
|
| 3 | [modal v] [verb] seen [pers pn] | 187 |
|
| 4 | must [verb] seen [pron] | 73 |
|
| 5 | must [verb] see [pers pn] | 51 |
|
