| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who have been [verb] [prep] | 1558 |
|
| 2 | who have been [v-ing] [prep] | 332 |
|
| 3 | [pron] have been fighting [prep] | 30 |
|
| 4 | who have been fight [prep] | 6 |
|
| 5 | who have [be] fighting [prep] | 6 |
|
| 6 | who have be fighting [prep] | 6 |
|
| 7 | who have [been] fighting [prep] | 6 |
|
| 8 | who [verb] been fighting [prep] | 6 |
|
