| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who have been [verb] | 3325 |
|
| 2 | who have been [v-ing] | 1024 |
|
| 3 | [pron] have been reading | 116 |
|
| 4 | who have been read | 8 |
|
| 5 | who have [been] reading | 7 |
|
| 6 | who have be reading | 7 |
|
| 7 | who [verb] been reading | 7 |
|
| 8 | who have [be] reading | 7 |
|
