| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | would have [been] [verb] | 1736 |
|
| 2 | [modal v] have [been] [v-ing] | 1003 |
|
| 3 | would [verb] [been] [v-ing] | 204 |
|
| 4 | would have [be] [v-ing] | 203 |
|
