| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [is] [vb pp] in | 214 |
|
| 2 | [to-vb] what [is] [vb pp] | 158 |
|
| 3 | [to-vb] what [is] in | 35 |
|
| 4 | [to-vb] [is] [vb pp] in | 15 |
|
