| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been a [noun] | 336 |
|
| 2 | have been [det] [noun] | 246 |
|
| 3 | have a [det] [noun] | 99 |
|
| 4 | been a [det] [noun] | 49 |
|
| 5 | have been a [det] | 25 |
|
