| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have [adv] been [prep] | 419 |
|
| 2 | [noun] have been operate [prep] | 28 |
|
| 3 | [noun] have [adv] operate [prep] | 10 |
|
| 4 | have [adv] been operate [prep] | 8 |
|
| 5 | [noun] have [adv] been operate | 7 |
|
