| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] at [det] [noun] | 309 |
|
| 2 | [subord] it [be] [det] [noun] | 181 |
|
| 3 | [subord] it [be] at [noun] | 50 |
|
| 4 | [subord] it [be] at [det] | 31 |
|
