| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [verb] been operate [prep] [art] | 7 |
|
| 2 | [pron] [verb] been operate [prep] [art] | 5 |
|
| 3 | [verb] been [vb pp] operate [prep] [art] | 5 |
|
| 4 | [verb] been [verb] operate [prep] [art] | 5 |
|
| 5 | [verb] been operate [adv] [prep] [art] | 5 |
|
| 6 | [verb] been operate [prep] [art] [noun] | 9 |
|
| 7 | [verb] been operate [prep] [art] [adj] | 8 |
|
| 8 | [verb] been operate [prep] [art] [adj] | 6 |
|
| 9 | [verb] been operate [prep] [art] [noun sg] | 5 |
|
