| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] certainly could not be | 6 |
|
| 2 | [pron] certainly could not be | 6 |
|
| 3 | certainly could not be [verb] | 8 |
|
| 4 | certainly could not be [vb pp] | 8 |
|
