| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could have been [prep] | 49 |
|
| 2 | [pers pn] could have been [prep] | 41 |
|
| 3 | [pron] could have been in | 22 |
|
| 4 | it could have been [prep] | 13 |
|
| 5 | it could have been [prep] | 13 |
|
| 6 | [pron] could have been at | 8 |
|
| 7 | he could have been [prep] | 8 |
|
| 8 | he could have been [prep] | 8 |
|
| 9 | we could have been [prep] | 7 |
|
| 10 | we could have been [prep] | 7 |
|
| 11 | i could have been [prep] | 7 |
|
| 12 | i could have been [prep] | 7 |
|
| 13 | [pron] could have been on | 6 |
|
