| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have been [v-ing] [prep] | 1813 |
|
| 2 | [noun] will have been [prep] | 19 |
|
| 3 | [noun] will have been [v-ing] | 16 |
|
| 4 | will have been [v-ing] [prep] | 8 |
|
