| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] what [is] [adv] | 414 |
|
| 2 | [to-vb] [pron] [is] [adv] | 402 |
|
| 3 | [to-vb] what [be] [adv] | 189 |
|
| 4 | [to-vb] [Wh det] [is] [adv] | 141 |
|
| 5 | [to-vb] what [is] [adv] | 121 |
|
