| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pos pn] concern over | 20 |
|
| 2 | their concern over | 8 |
|
| 3 | their concern over | 8 |
|
| 4 | its concern over | 5 |
|
| 5 | its concern over | 5 |
|
