| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been involved [prep] many | 9 |
|
| 2 | have been involved [prep] many | 9 |
|
| 3 | been involved [prep] many [noun pl] | 5 |
|
| 4 | been involved [prep] many [noun] | 5 |
|
