| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [not/n't] be [verb] | 2288 |
|
| 2 | [adv] could [not/n't] [verb] | 956 |
|
| 3 | [adv] [not/n't] be [verb] | 183 |
|
| 4 | [adv] could be [verb] | 161 |
|
| 5 | [adv] could [not/n't] be | 112 |
|
