| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which must [vb infin] [verb] the | 10 |
|
| 2 | which must [verb] [verb] the | 10 |
|
| 3 | which must have [verb] the | 8 |
|
| 4 | which must [verb] [vb pp] the | 8 |
|
| 5 | which must have [verb] the | 8 |
|
