| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb -s] be used | 87 |
|
| 2 | it be used for | 71 |
|
| 3 | [vb -s] be used for | 71 |
|
| 4 | it [vb -s] be for | 48 |
|
| 5 | it [vb -s] used for | 8 |
|
