| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] he could not | 194 |
|
| 2 | he could not be | 171 |
|
| 3 | [vb past] he not be | 33 |
|
| 4 | [vb past] he could be | 25 |
|
| 5 | [vb past] could not be | 8 |
|
