| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been a [noun] | 448 |
|
| 2 | [vb base] [det] a [noun] | 445 |
|
| 3 | [vb base] been [det] [noun] | 256 |
|
| 4 | been [det] a [noun] | 109 |
|
| 5 | [vb base] been [det] a | 15 |
|
