| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [prep] some [noun] | 88 |
|
| 2 | have been concerned [prep] [noun] | 17 |
|
| 3 | have been concerned [prep] some | 8 |
|
| 4 | been concerned [prep] some [noun] | 8 |
|
