| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [adv] [prep] [art] | 9939 |
|
| 2 | must [vb infin] [prep] [art] | 1429 |
|
| 3 | must [vb infin] [adv] [prep] | 670 |
|
| 4 | must [vb infin] [adv] [art] | 203 |
|
