| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [not/n't] be [vb pp] | 2250 |
|
| 2 | he could be [vb pp] | 217 |
|
| 3 | he could [not/n't] be | 171 |
|
| 4 | he [not/n't] be [vb pp] | 6 |
|
