| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which could [verb] at [adj] | 7 |
|
| 2 | which could [vb infin] at [adj] | 7 |
|
| 3 | which could [verb] at [det] | 6 |
|
| 4 | which could [verb] at any | 6 |
|
| 5 | which could [verb] at any | 6 |
|
