| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [pron] [adv] | 734 |
|
| 2 | could [pers pn] [adv] | 692 |
|
| 3 | [modal v] it [adv] | 226 |
|
| 4 | could it [adv] | 78 |
|
| 5 | could it [adv] | 56 |
|
