| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [verb] for | 7749 |
|
| 2 | [modal v] [verb] for | 7749 |
|
| 3 | must [verb] [prep] | 4048 |
|
| 4 | must [verb] [prep] | 4048 |
|
| 5 | must [verb] for | 366 |
|
| 6 | must [verb] for | 366 |
|
