| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [verb] an [noun] | 1266 |
|
| 2 | [vb base] been [verb] [noun] | 887 |
|
| 3 | been [verb] an [noun] | 169 |
|
| 4 | [vb base] been [verb] an | 51 |
|
| 5 | [vb base] been an [noun] | 31 |
|
