| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could have been [verb] | 405 |
|
| 2 | [pron] could have been [verb] | 391 |
|
| 3 | [pron] could have been [vb pp] | 331 |
|
| 4 | [pers pn] could have been [verb] | 303 |
|
| 5 | it could have been [verb] | 98 |
|
| 6 | it could have been [verb] | 98 |
|
| 7 | [Wh det] could have been [verb] | 75 |
|
| 8 | he could have been [verb] | 72 |
|
| 9 | [pron] could have been [v-ing] | 72 |
|
| 10 | he could have been [verb] | 72 |
|
| 11 | which could have been [verb] | 69 |
|
| 12 | which could have been [verb] | 69 |
|
| 13 | they could have been [verb] | 48 |
|
| 14 | they could have been [verb] | 45 |
|
| 15 | she could have been [verb] | 36 |
|
| 16 | she could have been [verb] | 36 |
|
| 17 | you could have been [verb] | 23 |
|
| 18 | you could have been [verb] | 23 |
|
| 19 | [pron] could have been do | 21 |
|
| 20 | [pron] could have been done | 16 |
|
| 21 | [pron] could have been use | 16 |
|
| 22 | [pron] could have been killed | 15 |
|
| 23 | [pron] could have been kill | 15 |
|
| 24 | i could have been [verb] | 15 |
|
| 25 | [pron] could have been make | 15 |
|
| 26 | [pron] could have been made | 14 |
|
| 27 | i could have been [verb] | 14 |
|
| 28 | [pron] could have been used | 14 |
|
| 29 | [pron] could 've been [verb] | 14 |
|
| 30 | who could have been [verb] | 11 |
|
