| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [verb] [pers pn] [modal v] [vb infin] | 424 |
|
| 2 | [verb] [verb] [pers pn] must [vb infin] | 67 |
|
| 3 | [vb past] [verb] [pron] must [vb infin] | 29 |
|
| 4 | [vb past] [verb] [pers pn] must [verb] | 26 |
|
