| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] has been [v-ing] [prep] | 328 |
|
| 2 | [Wh det] has been [v-ing] [prep] | 81 |
|
| 3 | [Wh det] [pron] has been [v-ing] | 33 |
|
| 4 | [Wh det] [pron] has been [prep] | 6 |
|
