| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [pers pn] could have | 51 |
|
| 2 | what [pers pn] could have | 32 |
|
| 3 | [Wh det] he could have | 23 |
|
| 4 | [Wh det] they could have | 20 |
|
| 5 | [Wh det] you could have | 10 |
|
| 6 | [Wh det] it could have | 10 |
|
| 7 | [Wh det] i could have | 8 |
|
| 8 | [Wh det] we could have | 8 |
|
