| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was found to | 311 |
|
| 2 | were found to | 194 |
|
| 3 | been found to | 169 |
|
| 4 | is found to | 59 |
|
| 5 | be found to | 48 |
|
| 6 | are found to | 40 |
|
