| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [prep] [adv] | 54 |
|
| 2 | has been operate [prep] | 26 |
|
| 3 | been operate [prep] [adv] | 8 |
|
| 4 | has been operate [adv] | 6 |
|
