| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] it | 19865 |
|
| 2 | must [vb infin] [pron] | 4239 |
|
| 3 | must [vb infin] [pers pn] | 2212 |
|
| 4 | must [verb] it | 569 |
|
| 5 | must [vb infin] it | 569 |
|
