| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i could [verb] | 8183 |
|
| 2 | [vb pp] i [verb] | 1454 |
|
| 3 | [vb pp] could [verb] | 103 |
|
| 4 | [vb pp] i could | 41 |
|
