| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it is [verb] that | 503 |
|
| 2 | it is [verb] that a | 246 |
|
| 3 | [subord] it is [verb] a | 58 |
|
| 4 | [subord] it [verb] that a | 30 |
|
