| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] [pron] could [verb] [prep] | 794 |
|
| 2 | [subord] [pron] [verb] [prep] i | 430 |
|
| 3 | [subord] [pron] could [verb] i | 170 |
|
| 4 | [pron] could [verb] [prep] i | 54 |
|
