| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must have [vb pp] for [art] | 8 |
|
| 2 | must have [vb pp] for [art] | 8 |
|
| 3 | must have [vb pp] for [art] | 7 |
|
| 4 | must have [vb pp] for a | 7 |
|
