| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh adv] it [is] [verb] | 688 |
|
| 2 | [vb base] it [is] [verb] | 500 |
|
| 3 | [vb base] [Wh adv] it [is] | 229 |
|
| 4 | [vb base] [Wh adv] it [verb] | 204 |
|
