| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | are concerned [prep] the | 217 |
|
| 2 | are concerned [prep] the | 217 |
|
| 3 | are [adj] at the | 210 |
|
| 4 | are [adj] at the | 193 |
|
| 5 | be concerned at the | 45 |
|
| 6 | [be] concerned at the | 45 |
|
| 7 | [am/are] concerned at the | 13 |
|
| 8 | are concerned at the | 8 |
|
| 9 | are concerned at [art] | 8 |
|
| 10 | are concerned at [art] | 8 |
|
| 11 | are concerned at the | 8 |
|
| 12 | are concerned at the | 8 |
|
