| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [verb] on a | 388 |
|
| 2 | [to-vb] been [verb] on | 98 |
|
| 3 | [to-vb] been [verb] a | 38 |
|
| 4 | [to-vb] [verb] on a | 31 |
|
| 5 | [to-vb] been on a | 5 |
|
