| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] [pron] could [verb] [prep] | 794 |
|
| 2 | [subord] [pron] could [verb] [prep] | 794 |
|
| 3 | [subord] [pron] [modal v] [verb] for | 306 |
|
| 4 | [conj] [pron] could [verb] for | 143 |
|
| 5 | [subord] [pron] could [verb] for | 85 |
|
