| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] been [verb] [prep] a | 86 |
|
| 2 | [pron] [vb past] been [verb] on a | 34 |
|
| 3 | which [vb past] been [verb] on [art] | 31 |
|
| 4 | which [vb past] been [verb] on [art] | 31 |
|
| 5 | which [verb] been [verb] on a | 12 |
|
| 6 | which [vb past] been [verb] on a | 7 |
|
| 7 | which [vb past] [be] [verb] on a | 7 |
|
| 8 | which [vb past] be [verb] on a | 7 |
|
| 9 | which [vb past] [been] [verb] on a | 6 |
|
| 10 | which [vb past] been [verb] on a | 6 |
|
| 11 | [Wh det] [vb past] been [verb] on a | 6 |
|
