| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been [verb] [prep] | 55546 |
|
| 2 | [modal v] [verb] [verb] [prep] | 13683 |
|
| 3 | [modal v] [verb] been [verb] | 7120 |
|
| 4 | [modal v] [verb] been [prep] | 1268 |
|
