| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not be [vb pp] [adv] | 238 |
|
| 2 | he could not be [vb pp] | 85 |
|
| 3 | he could be [vb pp] [adv] | 15 |
|
| 4 | he could not be [adv] | 11 |
|
