| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] [prep] a [adj] | 1979 |
|
| 2 | [vb pp] on [prep] a [adj] | 127 |
|
| 3 | been [vb pp] on [prep] a | 21 |
|
| 4 | been [vb pp] on [prep] [adj] | 10 |
|
