| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [be] used for | 203 |
|
| 2 | [conj] [verb] [be] used | 139 |
|
| 3 | [conj] [be] used for | 100 |
|
| 4 | [conj] [verb] [be] for | 62 |
|
