| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] [noun sg] [prep] | 77 |
|
| 2 | [Wh det] have been [v-ing] [prep] | 14 |
|
| 3 | [Wh det] have been [v-ing] [noun sg] | 6 |
|
