| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [adv] | 27371 |
|
| 2 | [pron] could [adv] | 9407 |
|
| 3 | [pron] [modal v] perhaps | 544 |
|
| 4 | [pron] could perhaps | 111 |
|
