| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [prep] [adv] [num] | 528 |
|
| 2 | must [vb infin] [prep] [adv] | 197 |
|
| 3 | must [vb infin] [prep] [num] | 81 |
|
| 4 | must [vb infin] [adv] [num] | 25 |
|
