| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [to-vb] [Wh det] [art] | 21 |
|
| 2 | [is] [to-vb] [Wh det] [art] | 21 |
|
| 3 | [is] [to-vb] what [art] | 21 |
|
| 4 | [is] [to-vb] [Wh det] the | 17 |
|
| 5 | [is] [to-vb] [Wh det] the | 17 |
|
