| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | where they have been [v-ing] | 19 |
|
| 2 | where they [vb base] been [v-ing] | 10 |
|
| 3 | where they [vb past] been [v-ing] | 9 |
|
| 4 | where they 've been [v-ing] | 7 |
|
| 5 | where they had been [v-ing] | 7 |
|
