| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be an [noun] | 2231 |
|
| 2 | be an [noun] [Wh det] | 403 |
|
| 3 | it be [noun] [Wh det] | 137 |
|
| 4 | it an [noun] [Wh det] | 5 |
|
