| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] have been [v-ing] in | 49 |
|
| 2 | what [verb] been [v-ing] in | 27 |
|
| 3 | [Wh det] [vb -s] been [v-ing] in | 27 |
|
| 4 | [Wh det] [verb] been happening in | 24 |
|
| 5 | which [verb] been [v-ing] in | 22 |
|
| 6 | [Wh det] had been [v-ing] in | 19 |
|
| 7 | [Wh det] [vb past] been [v-ing] in | 19 |
|
| 8 | [Wh det] has been [v-ing] in | 17 |
|
| 9 | [Wh det] 's been [v-ing] in | 10 |
|
