| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] could [not/n't] be [verb] | 69 |
|
| 2 | [det] who could [not/n't] [verb] | 62 |
|
| 3 | who could [not/n't] be [verb] | 42 |
|
| 4 | [det] who could [not/n't] be | 6 |
|
| 5 | [det] who could be [verb] | 6 |
|
