| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [v-ing] place [prep] | 46 |
|
| 2 | [been] taking place [prep] | 46 |
|
| 3 | [been] [v-ing] place in | 13 |
|
| 4 | [been] [v-ing] place for | 8 |
|
| 5 | [been] [v-ing] place since | 6 |
|
| 6 | [been] [v-ing] place on | 5 |
|
