| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] which [noun] [vb mod] have been | 13 |
|
| 2 | in which [noun] [vb mod] [vb infin] been | 8 |
|
| 3 | [prep] which [noun sg] [vb mod] [vb infin] been | 5 |
|
