| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] found to [be] [v-ing] | 7 |
|
| 2 | [verb] [been] found to [be] [v-ing] | 7 |
|
| 3 | [been] found to [be] [v-ing] [prep] | 6 |
|
| 4 | [been] found to [be] [v-ing] [prep] | 6 |
|
