| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] [been] found to | 5 |
|
| 2 | [prep] [v-ing] been found to | 5 |
|
| 3 | [prep] having [be] found to | 5 |
|
| 4 | [prep] [v-ing] be found to | 5 |
|
| 5 | of [v-ing] [be] found to | 5 |
|
