| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] [vb pp] | 14344 |
|
| 2 | is it [verb] | 916 |
|
| 3 | is it [vb pp] | 340 |
|
| 4 | is [verb] [vb pp] | 252 |
|
