| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that [vb mod] have been [art] | 90 |
|
| 2 | that [modal v] have been [art] | 90 |
|
| 3 | that [modal v] have been a | 49 |
|
| 4 | that would have been [art] | 45 |
|
| 5 | that would have been [art] | 45 |
|
| 6 | that [modal v] have been the | 34 |
|
| 7 | that must have been [art] | 16 |
|
| 8 | that must have been [art] | 16 |
|
| 9 | that may have been [art] | 11 |
|
| 10 | that may have been [art] | 11 |
|
| 11 | that should have been [art] | 7 |
|
| 12 | that [modal v] have been an | 7 |
|
| 13 | that should have been [art] | 7 |
|
| 14 | that could have been [art] | 5 |
|
| 15 | that could have been [art] | 5 |
|
