| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [is] [verb] | 13626 |
|
| 2 | [pron] [is] [to-vb] | 2706 |
|
| 3 | [Wh det] [be] [to-vb] | 1343 |
|
