| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be used [prep] this | 18 |
|
| 2 | to be used [prep] this | 18 |
|
| 3 | [prep] be used for this | 8 |
|
| 4 | [prep] be used in this | 8 |
|
