| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] have been talking | 14 |
|
| 2 | who [verb] been talking | 14 |
|
| 3 | [Wh pn] [vb -s] been talking | 6 |
|
| 4 | [Wh pn] [vb past] been talking | 6 |
|
| 5 | [Wh pn] had been talking | 6 |
|
