| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be an [noun] [verb] | 250 |
|
| 2 | be an [noun] [Wh det] [verb] | 162 |
|
| 3 | it be an [noun] [Wh det] | 113 |
|
| 4 | it be [noun] [Wh det] [verb] | 85 |
|
