| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been [verb] [prep] | 55546 |
|
| 2 | could [verb] [verb] [prep] | 1243 |
|
| 3 | could [verb] been [verb] | 1153 |
|
| 4 | could [verb] been [prep] | 99 |
|
