| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] have be [verb] by | 67 |
|
| 2 | could [adv] have be [vb pp] by | 67 |
|
| 3 | could [adv] have be [verb] by | 67 |
|
| 4 | could [adv] have been [verb] by | 67 |
|
| 5 | could [adv] have be [verb] by | 42 |
|
| 6 | could not have be [verb] by | 25 |
|
| 7 | could [not/n't] have be [verb] by | 25 |
|
| 8 | could not have be [verb] by | 22 |
|
| 9 | could only have be [verb] by | 16 |
|
| 10 | could only have be [verb] by | 16 |
|
| 11 | could [adv] have be make by | 5 |
|
| 12 | could [adv] have be made by | 5 |
|
