| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [been] [adj] [prep] [adj] [noun] | 298 |
|
| 2 | [verb] [been] concerned [prep] [adj] [noun] | 32 |
|
| 3 | [vb -s] [be] concerned [prep] [adj] [noun] | 14 |
|
| 4 | [vb -s] [been] concerned [prep] [adj] [noun] | 14 |
|
