| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [Wh adv] it [is] [verb] | 120 |
|
| 2 | [vb infin] [Wh adv] [pron] [is] [verb] | 110 |
|
| 3 | [vb infin] [Wh adv] it [be] [verb] | 60 |
|
| 4 | [vb infin] [adv] it [is] [verb] | 49 |
|
