| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] to operate [prep] | 123 |
|
| 2 | designed to operate [prep] | 27 |
|
| 3 | [vb pp] to operate in | 26 |
|
| 4 | [vb pp] to operate in | 26 |
|
| 5 | allowed to operate [prep] | 17 |
|
| 6 | [vb pp] to operate on | 17 |
|
| 7 | [vb pp] to operate on | 17 |
|
| 8 | [vb pp] to operate at | 16 |
|
| 9 | [vb pp] to operate at | 16 |
|
| 10 | [vb pp] to operate under | 9 |
|
| 11 | [vb pp] to operate as | 9 |
|
| 12 | [vb pp] to operate under | 9 |
|
| 13 | [vb pp] to operate as | 9 |
|
| 14 | [vb pp] to operate from | 8 |
|
| 15 | [vb pp] to operate from | 8 |
|
| 16 | intended to operate [prep] | 8 |
|
| 17 | [vb pp] to operate with | 7 |
|
| 18 | [vb pp] to operate with | 7 |
|
| 19 | forced to operate [prep] | 7 |
|
| 20 | [vb pp] to operate against | 5 |
|
| 21 | [vb pp] to operate against | 5 |
|
| 22 | required to operate [prep] | 5 |
|
