| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who have been [verb] | 3325 |
|
| 2 | who have been [v-ing] | 1024 |
|
| 3 | [pron] have been having | 155 |
|
| 4 | who [verb] been having | 17 |
|
| 5 | who have [been] having | 17 |
|
| 6 | who have [be] having | 17 |
|
| 7 | who have be having | 17 |
|
| 8 | who have been have | 17 |
|
