| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] [pers pn] [prep] [verb] | 16 |
|
| 2 | must [verb] [pers pn] [prep] [verb] | 16 |
|
| 3 | [modal v] thank [pers pn] [prep] [verb] | 12 |
|
| 4 | must thank [pers pn] [prep] [verb] | 5 |
|
| 5 | must thank [pron] [prep] [verb] | 5 |
|
