| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [det] [noun] | 6761 |
|
| 2 | been [prep] a [noun] | 703 |
|
| 3 | been [prep] [det] [noun] | 577 |
|
| 4 | been a [det] [noun] | 49 |
|
| 5 | been [prep] a [det] | 16 |
|
