| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pers pn] [verb] i could [vb infin] | 11 |
|
| 2 | when [pers pn] [verb] i could [vb infin] | 11 |
|
| 3 | when [pers pn] [vb past] i could [vb infin] | 9 |
|
