| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [v-ing] place [prep] | 19 |
|
| 2 | have been taking place [prep] | 19 |
|
| 3 | have been [v-ing] place in | 7 |
|
| 4 | have been [v-ing] place in | 7 |
|
