| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [v-ing] [noun] | 429 |
|
| 2 | has been in [noun] | 387 |
|
| 3 | been [v-ing] in [noun] | 297 |
|
| 4 | has been [v-ing] in | 158 |
|
