| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have [vb pp] down the [noun] | 7 |
|
| 2 | which [verb] [vb pp] down the [noun] | 7 |
|
| 3 | which [vb past] [vb pp] down the [noun] | 5 |
|
| 4 | which had [vb pp] down the [noun] | 5 |
|
