| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] be used [verb] | 130 |
|
| 2 | [vb mod] be used for [verb] | 91 |
|
| 3 | it [vb mod] be used for | 56 |
|
| 4 | it be used for [verb] | 7 |
|
