| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] 've be [v-ing] [prep] | 8 |
|
| 2 | [Wh pn] 've been [v-ing] [prep] | 8 |
|
| 3 | who 've be [v-ing] [prep] | 8 |
|
