| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been found to [be] | 143 |
|
| 2 | have [been] found to be | 143 |
|
| 3 | has [been] found to [be] | 54 |
|
| 4 | have [been] found to [be] | 47 |
|
| 5 | had [been] found to [be] | 28 |
|
| 6 | having [been] found to [be] | 14 |
|
