| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] concern over | 184 |
|
| 2 | [adj] concern over | 158 |
|
| 3 | grave concern [prep] | 35 |
|
| 4 | grave concern [prep] | 35 |
|
| 5 | grave [noun] over | 6 |
|
| 6 | grave concern over | 5 |
|
| 7 | grave concern over | 5 |
|
