| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [pos pn] [noun] [Wh det] | 59 |
|
| 2 | it be [noun] [Wh det] [vb past] | 40 |
|
| 3 | be [pos pn] [noun] [Wh det] [vb past] | 22 |
|
| 4 | it be [pos pn] [noun] [vb past] | 6 |
|
