| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] [adv] be | 531 |
|
| 2 | area which [vb past] [adv] | 19 |
|
| 3 | area [vb past] [adv] be | 13 |
|
| 4 | area which [vb past] be | 8 |
|
