| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | would have been [adj] | 2339 |
|
| 2 | would have been [adj] | 1863 |
|
| 3 | [modal v] have been useful | 21 |
|
| 4 | would have been useful | 15 |
|
| 5 | would have [be] useful | 15 |
|
| 6 | would have be useful | 15 |
|
| 7 | would have [been] useful | 15 |
|
| 8 | would [verb] been useful | 15 |
|
