| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [adj] [prep] [adj] [noun] [conj] | 542 |
|
| 2 | [be] concerned [prep] [adj] [noun] [conj] | 45 |
|
| 3 | [was/were] concerned [prep] [adj] [noun] [conj] | 8 |
|
