| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [verb] [art] | 4797 |
|
| 2 | must [vb infin] [art] | 4793 |
|
| 3 | [modal v] see [art] | 3055 |
|
| 4 | must see [art] | 30 |
|
