| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] it but [pron] could | 5 |
|
| 2 | it but [pron] could not | 6 |
|
| 3 | it but [pron] could [adv] | 6 |
|
| 4 | it but [pron] could [not/n't] | 6 |
|
