| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] be operating [art] [adj] | 7 |
|
| 2 | be operating [prep] [art] [adj] | 50 |
|
| 3 | be operating [prep] [art] [adj] | 50 |
|
| 4 | be operating in [art] [adj] | 16 |
|
| 5 | be operating in [art] [adj] | 16 |
|
| 6 | be operating on [art] [adj] | 11 |
|
| 7 | be operating on [art] [adj] | 11 |
|
| 8 | be operating [art] [adj] [noun] | 10 |
|
| 9 | be operating [art] [adj] [noun sg] | 9 |
|
