| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb base] [be] concerned [prep] [det] | 5 |
|
| 2 | [vb base] [be] concerned [prep] [det] [noun] | 7 |
|
| 3 | [vb base] [be] concerned [prep] [det] [noun sg] | 5 |
|
