| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it [be] a [noun sg] | 1295 |
|
| 2 | it [be] [det] a [noun sg] | 368 |
|
| 3 | [subord] it [be] [det] [noun sg] | 156 |
|
| 4 | [subord] it [be] [det] a | 82 |
|
