| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [verb] [been] [adj] | 354 |
|
| 2 | [vb mod] [verb] [been] some | 104 |
|
| 3 | [modal v] [verb] [been] some | 104 |
|
| 4 | could [verb] [be] some | 11 |
|
| 5 | could [verb] [been] some | 9 |
|
