| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] have been a [noun] | 82 |
|
| 2 | of [det] have been a | 6 |
|
| 3 | of [det] have been [noun] | 5 |
|
| 4 | of [det] have a [noun] | 5 |
|
