| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] i could [verb] [indef pn] | 8 |
|
| 2 | [vb past] i could [verb] [indef pn] | 8 |
|
| 3 | [vb past] i could [vb infin] [indef pn] | 8 |
|
