| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [adv] [adv] [verb] | 615 |
|
| 2 | must [vb infin] [adv] [adv] | 286 |
|
| 3 | must [vb infin] [adv] [verb] | 268 |
|
| 4 | must [vb infin] [adv] [verb] | 178 |
|
| 5 | must [adv] [adv] [verb] | 133 |
|
