| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [be] [adj] [prep] [noun sg] | 839 |
|
| 2 | [verb] [be] concerned [prep] [noun] | 20 |
|
| 3 | [verb] [be] concerned [prep] [noun sg] | 10 |
|
