| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [adv] [verb] a | 389 |
|
| 2 | but [pron] [adv] [verb] a | 358 |
|
| 3 | but [pron] could [adv] [verb] | 267 |
|
| 4 | but [pron] could [verb] a | 50 |
|
