| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who have been [v-ing] [noun] | 149 |
|
| 2 | have been [v-ing] [noun] in | 110 |
|
| 3 | who have been [v-ing] in | 68 |
|
| 4 | who have been [noun] in | 5 |
|
