| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [verb] to | 1036 |
|
| 2 | [vb mod] turn to | 214 |
|
| 3 | [modal v] turn to | 214 |
|
| 4 | must turn [prep] | 31 |
|
| 5 | must turn to | 25 |
|
