| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] be [v-ing] [prep] | 1901 |
|
| 2 | 've be [v-ing] [prep] | 879 |
|
| 3 | [Wh pn] 've be [v-ing] | 44 |
|
| 4 | [Wh pn] 've be [prep] | 30 |
|
