| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be operating [prep] [adj] | 29 |
|
| 2 | be operating [prep] [adj] | 29 |
|
| 3 | be operating [art] [adj] | 15 |
|
| 4 | be operating [art] [adj] | 15 |
|
| 5 | be operating a [adj] | 12 |
|
| 6 | be operating a [adj] | 8 |
|
| 7 | be operating at [adj] | 7 |
|
| 8 | be operating at [adj] | 7 |
|
| 9 | be operating in [adj] | 5 |
|
| 10 | be operating in [adj] | 5 |
|
