| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [v-ing] [prep] [noun] | 262 |
|
| 2 | been [v-ing] [prep] [noun] in | 48 |
|
| 3 | has been [prep] [noun] in | 33 |
|
| 4 | has been [v-ing] [noun] in | 29 |
|
