| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [been] [prep] this [noun sg] | 121 |
|
| 2 | [verb] [been] concerned [prep] [noun sg] | 7 |
|
| 3 | [been] concerned [prep] this [noun sg] | 6 |
|
| 4 | [verb] [been] concerned [prep] this | 6 |
|
