| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [vb pp] [v-ing] in | 25 |
|
| 2 | had [been] [vb pp] [v-ing] in | 13 |
|
| 3 | have [been] [vb pp] [v-ing] in | 8 |
|
| 4 | have [been] found [v-ing] in | 5 |
|
