| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [is] it [prep] | 309 |
|
| 2 | what [is] it [verb] | 250 |
|
| 3 | [is] it [prep] [verb] | 56 |
|
| 4 | what [is] [prep] [verb] | 12 |
|
