| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [is] [verb] [to-vb] [prep] [art] | 276 |
|
| 2 | what [is] [verb] [verb] [prep] [art] | 38 |
|
| 3 | what [be] [verb] [to-vb] [prep] [art] | 33 |
|
| 4 | what [is] [verb] [to-vb] [prep] [art] | 32 |
|
