| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [verb] [pron] [vb past] | 252 |
|
| 2 | [vb mod] [verb] i [vb past] | 197 |
|
| 3 | [modal v] [verb] i [vb past] | 197 |
|
| 4 | could [verb] i [verb] | 120 |
|
| 5 | could [verb] i [vb past] | 24 |
|
