| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [pron] could [not/n't] | 1374 |
|
| 2 | [pron] could [not/n't] be | 1289 |
|
| 3 | but [pron] could be | 225 |
|
| 4 | but could [not/n't] be | 25 |
|
