| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [verb] been involved | 23 |
|
| 2 | they have been involved | 23 |
|
| 3 | they [vb past] been involved | 14 |
|
| 4 | they had been involved | 13 |
|
| 5 | they [vb base] been involved | 9 |
|
| 6 | they 've been involved | 5 |
|
