| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] a [adj] | 612 |
|
| 2 | be [vb pp] a [num] | 114 |
|
| 3 | [be] [vb pp] a [num] | 114 |
|
| 4 | been [vb pp] [art] [num] | 50 |
|
| 5 | been [verb] a [num] | 36 |
|
| 6 | [been] [vb pp] a [num] | 26 |
|
