| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [conj] [verb] [prep] | 1900 |
|
| 2 | must [vb infin] [verb] [prep] | 867 |
|
| 3 | must [vb infin] [conj] [verb] | 360 |
|
| 4 | must [vb infin] [conj] [prep] | 62 |
|
