| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [vb pp] [adj] | 353 |
|
| 2 | could be [vb pp] [adj] | 239 |
|
| 3 | [modal v] be [vb pp] responsible | 42 |
|
| 4 | [vb mod] be [vb pp] responsible | 42 |
|
| 5 | could [be] [vb pp] responsible | 9 |
|
| 6 | could be [verb] responsible | 9 |
|
| 7 | could be [vb pp] responsible | 9 |
|
| 8 | could [be] [vb pp] responsible | 9 |
|
| 9 | could be [vb pp] responsible | 9 |
|
| 10 | could be [vb pp] responsible | 9 |
|
