| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been concerned [prep] the [noun sg] | 31 |
|
| 2 | [verb] been concerned [prep] the [noun sg] | 31 |
|
| 3 | [verb] been concerned [prep] the [noun sg] | 31 |
|
| 4 | [verb] been concerned with the [noun sg] | 24 |
|
| 5 | has been concerned [prep] the [noun sg] | 13 |
|
| 6 | [vb -s] been concerned [prep] the [noun sg] | 13 |
|
| 7 | [vb base] been concerned [prep] the [noun sg] | 8 |
|
| 8 | have been concerned [prep] the [noun sg] | 8 |
|
| 9 | had been concerned [prep] the [noun sg] | 6 |
|
| 10 | [vb past] been concerned [prep] the [noun sg] | 6 |
|
| 11 | [verb] been concerned about the [noun sg] | 6 |
|
