| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be concerned [prep] the | 128 |
|
| 2 | be concerned with the | 83 |
|
| 3 | be concerned with the | 83 |
|
| 4 | be concerned about the | 30 |
|
| 5 | be concerned about the | 30 |
|
| 6 | be concerned at the | 5 |
|
| 7 | be concerned at the | 5 |
|
