| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] [pers pn] could [verb] a | 375 |
|
| 2 | [vb base] [subord] [pers pn] [verb] a | 177 |
|
| 3 | [vb base] [subord] [pers pn] could [verb] | 169 |
|
| 4 | [vb base] [pers pn] could [verb] a | 82 |
|
