| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that they [vb mod] have been | 62 |
|
| 2 | that they [modal v] have been | 62 |
|
| 3 | that they [modal v] have been | 62 |
|
| 4 | that they [modal v] have been | 61 |
|
| 5 | that they may have been | 11 |
|
| 6 | that they may have been | 11 |
|
| 7 | that they should have been | 11 |
|
| 8 | that they should have been | 11 |
|
| 9 | that they could have been | 10 |
|
| 10 | that they could have been | 10 |
|
| 11 | that they would have been | 10 |
|
| 12 | that they would have been | 8 |
|
| 13 | that they might have been | 8 |
|
| 14 | that they might have been | 8 |
|
| 15 | that they must have been | 6 |
|
| 16 | that they must have been | 6 |
|
| 17 | that they will have been | 5 |
|
| 18 | that they will have been | 5 |
|
