| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] have been fighting | 20 |
|
| 2 | who [verb] been fighting | 20 |
|
| 3 | [Wh pn] [vb base] been fighting | 10 |
|
| 4 | [Wh pn] have been fighting | 8 |
|
| 5 | [Wh pn] [vb past] been fighting | 5 |
|
| 6 | [Wh pn] [vb -s] been fighting | 5 |
|
