| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] what [is] | 3575 |
|
| 2 | what [is] [prep] | 1482 |
|
| 3 | [verb] [is] [prep] | 1202 |
|
| 4 | [verb] what [prep] | 366 |
|
