| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] a [adj] | 16971 |
|
| 2 | it [vb past] a [adj] | 1671 |
|
| 3 | [vb past] [be] a [adj] | 1597 |
|
| 4 | it [vb past] [be] a | 578 |
|
| 5 | it [vb past] [be] [adj] | 535 |
|
