| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was concerned [prep] the [noun pl] | 12 |
|
| 2 | was concerned about the [noun pl] | 6 |
|
| 3 | was concerned about the [noun pl] | 6 |
|
| 4 | was concerned with the [noun pl] | 5 |
|
| 5 | was concerned with the [noun pl] | 5 |
|
