| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] been under [noun] | 23 |
|
| 2 | which had [been] under [noun] | 23 |
|
| 3 | which [vb past] [been] under [noun] | 23 |
|
| 4 | which [vb past] [been] under [noun sg] | 22 |
|
