| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] a [noun] | 17655 |
|
| 2 | [be] a common [noun] | 479 |
|
| 3 | it [be] common [noun] | 149 |
|
| 4 | it [be] a common | 99 |
|
