| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] [pron] [Wh det] could | 7 |
|
| 2 | be [not/n't] [pron] [Wh det] could | 5 |
|
| 3 | be not [pron] [Wh det] could | 5 |
|
| 4 | be not [pron] [Wh det] could | 5 |
|
| 5 | be [pron] [Wh det] could [adv] | 6 |
|
