| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] concerned [prep] [adj] | 408 |
|
| 2 | concerned [prep] [adj] issue | 35 |
|
| 3 | [be] [prep] [adj] issue | 19 |
|
| 4 | [be] concerned [prep] issue | 6 |
|
