| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] to operate [prep] [art] [adj -er] | 5 |
|
| 2 | to operate [prep] [art] [adj -er] [noun] | 11 |
|
| 3 | to operate [prep] [art] [adj -er] [noun sg] | 11 |
|
