| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] have [been] operating | 6 |
|
| 2 | [conj] [verb] been operating | 6 |
|
| 3 | that [verb] [been] operating | 5 |
|
| 4 | that [verb] [been] operating | 5 |
|
| 5 | [that] [verb] [been] operating | 5 |
|
