| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this [vb mod] have been [art] [adj] | 58 |
|
| 2 | this [modal v] have been [art] [adj] | 58 |
|
| 3 | this [modal v] have been [art] [adj] | 49 |
|
| 4 | this [modal v] have been a [adj] | 33 |
|
| 5 | 21 |
|
|
| 6 | this may have been [art] [adj] | 21 |
|
| 7 | this [modal v] have been the [adj] | 14 |
|
| 8 | this would have been [art] [adj] | 13 |
|
| 9 | this would have been [art] [adj] | 13 |
|
| 10 | this must have been [art] [adj] | 11 |
|
| 11 | this must have been [art] [adj] | 11 |
|
| 12 | this [modal v] have been an [adj] | 7 |
|
| 13 | this could have been [art] [adj] | 6 |
|
| 14 | this could have been [art] [adj] | 6 |
|
| 15 | this [modal v] have been [art] [det] | 5 |
|
