| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] [verb] | 33714 |
|
| 2 | then it [verb] | 1190 |
|
| 3 | then it [modal v] | 1084 |
|
| 4 | then [modal v] [verb] | 198 |
|
