| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | he could [verb] | 7789 |
|
| 2 | he could [vb infin] | 7719 |
|
| 3 | [pron] could do | 2801 |
|
| 4 | he [modal v] do | 1331 |
|
| 5 | he could do | 434 |
|
