| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] been [verb] a [noun sg] [noun] | 5 |
|
| 2 | [to-vb] been [verb] a [noun] [noun sg] | 5 |
|
| 3 | to have been [verb] a [noun] [noun] | 5 |
|
