| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have been [v-ing] [prep] | 1813 |
|
| 2 | [noun] would have been [prep] | 141 |
|
| 3 | [noun] would have been [v-ing] | 68 |
|
| 4 | would have been [v-ing] [prep] | 50 |
|
