| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have been [verb] by a | 132 |
|
| 2 | [vb mod] have [been] [vb pp] by a | 132 |
|
| 3 | [vb mod] have [been] [verb] by a | 132 |
|
| 4 | [vb mod] have [been] [verb] by a | 130 |
|
| 5 | [vb mod] have [been] [verb] by a | 109 |
|
| 6 | may have [been] [verb] by a | 37 |
|
| 7 | could have [been] [verb] by a | 24 |
|
| 8 | [vb mod] have [been] [verb] by an | 23 |
|
| 9 | might have [been] [verb] by a | 23 |
|
| 10 | must have [been] [verb] by a | 16 |
|
| 11 | would have [been] [verb] by a | 16 |
|
| 12 | [vb mod] have [been] cause by a | 9 |
|
| 13 | [vb mod] have [been] caused by a | 9 |
|
| 14 | should have [been] [verb] by a | 8 |
|
| 15 | will have [been] [verb] by a | 7 |
|
