| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] been [verb] | 40418 |
|
| 2 | [vb -s] [verb] a | 14817 |
|
| 3 | [vb -s] been a | 3898 |
|
| 4 | been [verb] a | 2247 |
|
