| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] it [is] [verb] | 1816 |
|
| 2 | [Wh adv] it [is] [verb] | 688 |
|
| 3 | why [pron] [is] [verb] | 171 |
|
| 4 | why it [be] [verb] | 120 |
|
| 5 | why it [is] [verb] | 70 |
|
