| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [verb] [prep] [det] | 890 |
|
| 2 | [verb] been [prep] [det] | 781 |
|
| 3 | could [verb] been [prep] | 99 |
|
| 4 | could [verb] been [det] | 63 |
|
