| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb mod] [verb] the | 2240 |
|
| 2 | [pron] [vb mod] allow the | 127 |
|
| 3 | which [vb mod] allow [art] | 70 |
|
| 4 | which [modal v] allow the | 59 |
|
