| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [is] [vb pp] [prep] | 3681 |
|
| 2 | [is] [vb pp] [prep] [verb] | 2231 |
|
| 3 | which [is] [vb pp] [verb] | 594 |
|
| 4 | which [is] [prep] [verb] | 23 |
|
