| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been concerned for | 10 |
|
| 2 | have been concerned for | 10 |
|
| 3 | been concerned for [adj] | 6 |
|
| 4 | been concerned for [det] | 6 |
|
| 5 | been concerned for some | 6 |
|
| 6 | been concerned for some | 6 |
|
