| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] concerned with | 42 |
|
| 2 | have [be] concerned with | 42 |
|
| 3 | have [be] concerned with | 42 |
|
| 4 | have be concerned with | 42 |
|
| 5 | have been concerned with | 42 |
|
