| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] a [noun] [prep] | 6126 |
|
| 2 | [be] a [noun] [prep] [Wh det] | 909 |
|
| 3 | it [be] a [noun] [Wh det] | 492 |
|
| 4 | it [be] [noun] [prep] [Wh det] | 15 |
|
