| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who [vb base] been [v-ing] | 213 |
|
| 2 | who have been [v-ing] | 169 |
|
| 3 | who 've been [v-ing] | 44 |
|
| 4 | who [vb base] been doing | 14 |
|
| 5 | who [vb base] been fighting | 10 |
|
| 6 | who [vb base] been working | 8 |
|
| 7 | who [vb base] been waiting | 7 |
|
| 8 | who [vb base] been living | 7 |
|
| 9 | who [vb base] been holding | 5 |
|
