| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [vb pp] a [noun] | 4254 |
|
| 2 | has been a [noun] | 1339 |
|
| 3 | been [vb pp] a [noun] | 692 |
|
| 4 | has been [vb pp] [noun] | 402 |
|
| 5 | has been [vb pp] a | 372 |
|
