| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] [prep] [noun] | 1324 |
|
| 2 | [vb mod] have been [v-ing] [prep] | 288 |
|
| 3 | [vb mod] have been [prep] [noun] | 284 |
|
| 4 | [vb mod] have been [v-ing] [noun] | 84 |
|
