| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it could have been [verb] | 30 |
|
| 2 | [subord] it could have been [verb] | 12 |
|
| 3 | [coord] it could have been [verb] | 10 |
|
| 4 | that it could have been [verb] | 8 |
|
| 5 | that it could have been [verb] | 8 |
|
| 6 | [that] it could have been [verb] | 8 |
|
| 7 | [adv] it could have been [verb] | 7 |
|
| 8 | [verb] it could have been [verb] | 7 |
|
| 9 | it could [adv] have been [verb] | 40 |
|
| 10 | it could [adv] have been [verb] | 25 |
|
| 11 | it could [not/n't] have been [verb] | 15 |
|
| 12 | it could not have been [verb] | 15 |
|
| 13 | it could not have been [verb] | 11 |
|
| 14 | it could easily have been [verb] | 7 |
|
| 15 | it could easily have been [verb] | 7 |
|
| 16 | it could all have been [verb] | 5 |
|
| 17 | it could [det] have been [verb] | 5 |
|
| 18 | it could [adj] have been [verb] | 5 |
|
| 19 | it could all have been [verb] | 5 |
|
| 20 | it could have been [adv] [verb] | 5 |
|
| 21 | it could have been [adv] [verb] | 5 |
|
| 22 | it could have been [verb] [prep] | 50 |
|
| 23 | it could have been [verb] [prep] | 50 |
|
| 24 | it could have been [verb] [adv] | 19 |
|
| 25 | it could have been [verb] by | 18 |
|
| 26 | it could have been [verb] by | 18 |
|
| 27 | it could have been [verb] [adv prt] | 10 |
|
| 28 | it could have been [verb] [adv] | 9 |
|
| 29 | it could have been [verb] in | 6 |
|
| 30 | it could have been [verb] in | 6 |
|
