| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] been [verb] on [art] | 31 |
|
| 2 | which had [been] [verb] on [art] | 31 |
|
| 3 | which [vb past] [been] [vb pp] on [art] | 29 |
|
| 4 | which [vb past] [been] [verb] on the | 24 |
|
| 5 | which [vb past] [been] [verb] on a | 6 |
|
