| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] could [verb] [verb] | 122 |
|
| 2 | [det] [vb mod] [verb] [vb infin] | 72 |
|
| 3 | [det] [modal v] [verb] [vb infin] | 72 |
|
| 4 | [adj] could [verb] [vb infin] | 8 |
|
| 5 | [det] could [verb] [vb infin] | 7 |
|
