| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [verb] [pers pn] [modal v] have | 98 |
|
| 2 | [vb past] [verb] [pers pn] must [vb infin] | 26 |
|
| 3 | [vb past] [verb] [pers pn] must [verb] | 26 |
|
| 4 | [verb] [verb] [pers pn] must have | 14 |
|
| 5 | [vb past] [verb] [pron] must have | 11 |
|
| 6 | [vb past] [verb] [pers pn] must have | 8 |
|
