| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] been a [noun sg] in | 15 |
|
| 2 | to have been a [noun] in | 15 |
|
| 3 | [to-vb] been a [noun] in | 10 |
|
| 4 | [to-vb] been an [noun] in | 5 |
|
