| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we [verb] been concerned [prep] | 15 |
|
| 2 | we [vb base] been concerned [prep] | 15 |
|
| 3 | we [verb] been concerned [prep] | 15 |
|
| 4 | we have been concerned [prep] | 15 |
|
| 5 | we [verb] been concerned [prep] | 15 |
|
| 6 | we have been concerned [prep] | 14 |
|
| 7 | we [verb] been concerned with | 13 |
|
| 8 | we [verb] been concerned with | 13 |
|
