| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be use [prep] the operation | 9 |
|
| 2 | to be use [prep] the operation | 9 |
|
| 3 | to be use [prep] the operation | 9 |
|
| 4 | [prep] be use [prep] the operation | 9 |
|
