| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [pers pn] could [verb] | 12676 |
|
| 2 | before [pers pn] [modal v] [verb] | 1815 |
|
| 3 | before [pers pn] [vb mod] [verb] | 1815 |
|
| 4 | before [pron] could [verb] | 1078 |
|
| 5 | before [pers pn] could [verb] | 1042 |
|
