| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] could [verb] | 40222 |
|
| 2 | [pers pn] could [vb infin] | 39978 |
|
| 3 | [pers pn] [modal v] do | 13241 |
|
| 4 | [pron] could do | 2801 |
|
| 5 | [pers pn] could do | 2677 |
|
