| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [pron] could [not/n't] [vb infin] | 588 |
|
| 2 | just [vb past] [pron] could [vb infin] | 7 |
|
| 3 | just [vb past] [pron] could [not/n't] | 6 |
|
