| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be use for | 275 |
|
| 2 | [vb infin] [prep] be use | 56 |
|
| 3 | [vb infin] be use for | 24 |
|
| 4 | [vb infin] [prep] be for | 12 |
|
