| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [vb mod] have been [art] [adj] | 83 |
|
| 2 | what [modal v] have been [art] [adj] | 70 |
|
| 3 | what [modal v] have been a [adj] | 55 |
|
| 4 | what must have been [art] [adj] | 24 |
|
| 5 | what must have been [art] [adj] | 24 |
|
| 6 | what could have been [art] [adj] | 21 |
|
| 7 | what could have been [art] [adj] | 21 |
|
| 8 | what [modal v] have been the [adj] | 19 |
|
| 9 | what should have been [art] [adj] | 18 |
|
| 10 | what should have been [art] [adj] | 18 |
|
| 11 | what would have been [art] [adj] | 11 |
|
| 12 | what would have been [art] [adj] | 11 |
|
| 13 | what [modal v] have been an [adj] | 8 |
|
| 14 | what [modal v] have been [art] [adj -est] | 6 |
|
| 15 | what might have been [art] [adj] | 5 |
|
| 16 | what might have been [art] [adj] | 5 |
|
