| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [be] [verb] [prep] | 576 |
|
| 2 | [modal v] [vb infin] [be] talk [prep] | 14 |
|
| 3 | could [vb infin] [be] talk [prep] | 6 |
|
| 4 | could [verb] [be] talk [prep] | 6 |
|
