| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] [be] [prep] [art] [noun sg] | 1959 |
|
| 2 | [be] concerned [prep] [art] [noun sg] | 728 |
|
| 3 | [noun prp] [be] concerned [prep] [art] | 44 |
|
| 4 | [noun prp] [be] concerned [prep] [noun sg] | 13 |
|
