| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] be used for | 280 |
|
| 2 | [verb] be used for | 203 |
|
| 3 | [adv] [verb] be used | 66 |
|
| 4 | [adv] [verb] be for | 37 |
|
