| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [verb] | 51063 |
|
| 2 | [be] [verb] [that] | 22780 |
|
| 3 | it [verb] [that] | 6782 |
|
| 4 | it [be] [that] | 1400 |
|
