| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] in | 12296 |
|
| 2 | must [vb infin] [prep] | 4043 |
|
| 3 | must [vb infin] [prep] | 4043 |
|
| 4 | must [verb] in | 482 |
|
| 5 | must [vb infin] in | 480 |
|
