| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been [verb] this | 16 |
|
| 2 | [vb mod] have been [verb] this | 16 |
|
| 3 | [modal v] have been [verb] this | 15 |
|
| 4 | [modal v] have been [vb pp] this | 9 |
|
| 5 | [modal v] have been [v-ing] this | 6 |
|
| 6 | should have been [verb] this | 5 |
|
| 7 | should have been [verb] this | 5 |
|
