| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] [verb] | 33714 |
|
| 2 | [modal v] [verb] for | 7749 |
|
| 3 | it [verb] for | 1558 |
|
| 4 | it [modal v] for | 20 |
|
