| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | before it can be [vb pp] | 47 |
|
| 2 | before it can be [verb] | 47 |
|
| 3 | before it can be [verb] | 47 |
|
| 4 | before it can be use | 11 |
|
| 5 | before it can be used | 11 |
|
