| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [is] [vb pp] [verb] [art] | 136 |
|
| 2 | [is] [vb pp] at [verb] [art] | 54 |
|
| 3 | which [is] [vb pp] at [art] | 52 |
|
| 4 | which [is] [vb pp] at [verb] | 15 |
|
