| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [adj] | 6286 |
|
| 2 | could [vb infin] [adj -er] | 131 |
|
| 3 | [modal v] [vb infin] worse | 93 |
|
| 4 | could [vb infin] bad | 16 |
|
| 5 | could [verb] worse | 14 |
|
