| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [adj] [prep] | 9701 |
|
| 2 | been [adj] [prep] | 8525 |
|
| 3 | be concerned [prep] | 2903 |
|
| 4 | [be] concerned [prep] | 2903 |
|
| 5 | been concerned [prep] | 205 |
|
| 6 | [been] concerned [prep] | 205 |
|
