| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [vb mod] have been a [adj] | 56 |
|
| 2 | what [vb mod] have [been] a [adj] | 56 |
|
| 3 | what [vb mod] have [been] a [adj] | 55 |
|
| 4 | what [vb mod] have [been] a [adj] | 54 |
|
| 5 | what could have [been] a [adj] | 18 |
|
| 6 | what should have [been] a [adj] | 15 |
|
| 7 | what must have [been] a [adj] | 14 |
|
