| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been found to be a | 5 |
|
| 2 | [vb -s] been found to be a | 5 |
|
| 3 | has been found to be a | 5 |
|
| 4 | have been found to be a | 5 |
|
