| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [vb infin] [prep] [adv] [adj] | 94 |
|
| 2 | [modal v] [vb infin] [prep] [adv] two | 37 |
|
| 3 | must [verb] [prep] [adv] two | 10 |
|
