| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [verb] [been] [verb] | 1153 |
|
| 2 | also [verb] [been] [verb] | 120 |
|
| 3 | could also [verb] [verb] | 43 |
|
| 4 | could also [verb] [been] | 19 |
|
