| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [v-ing] [art] | 2125 |
|
| 2 | [Wh pn] have [been] [v-ing] | 1038 |
|
| 3 | [Wh pn] have [been] [art] | 271 |
|
