| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [pron] could [verb] | 13400 |
|
| 2 | [conj] [vb base] [pron] [verb] | 5831 |
|
| 3 | [vb base] [pron] could [verb] | 1157 |
|
| 4 | [conj] [vb base] [pron] could | 37 |
|
