| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been a [noun sg] for | 30 |
|
| 2 | [vb base] been a [noun] for | 30 |
|
| 3 | [vb base] been a [noun] for | 26 |
|
| 4 | 've been a [noun] for | 15 |
|
| 5 | have been a [noun] for | 15 |
|
