| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this [vb mod] have been a [adj] | 33 |
|
| 2 | this [vb mod] have [been] a [adj] | 33 |
|
| 3 | this [vb mod] have [been] a [adj] | 31 |
|
| 4 | this may have [been] a [adj] | 10 |
|
| 5 | this would have [been] a [adj] | 8 |
|
| 6 | this must have [been] a [adj] | 6 |
|
| 7 | this could have [been] a [adj] | 5 |
|
