| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [verb] in | 9394 |
|
| 2 | have [been] [v-ing] in | 815 |
|
| 3 | have [been] operating [prep] | 50 |
|
| 4 | have [been] operate in | 17 |
|
| 5 | have [be] operating in | 16 |
|
| 6 | [verb] [been] operating in | 16 |
|
