| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been a [noun] | 983 |
|
| 2 | been [prep] a [noun] | 703 |
|
| 3 | have been [prep] [noun] | 341 |
|
| 4 | have been [prep] a | 109 |
|
| 5 | have [prep] a [noun] | 49 |
|
