| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] [prep] [adj] | 1054 |
|
| 2 | [Wh det] have been [v-ing] [prep] | 195 |
|
| 3 | [Wh det] have been [v-ing] [adj] | 33 |
|
| 4 | [Wh det] have been [prep] [adj] | 27 |
|
