| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [verb] | 18427 |
|
| 2 | is [verb] [subord] | 3762 |
|
| 3 | it [verb] [subord] | 2101 |
|
| 4 | it is [subord] | 557 |
|
