| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [to-vb] a | 205 |
|
| 2 | [Wh det] [be] [to-vb] a | 108 |
|
| 3 | [Wh det] it [be] [to-vb] | 92 |
|
| 4 | [Wh det] it [be] a | 67 |
|
