| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is an [adj] | 1021 |
|
| 2 | it is [vb pp] [adj] | 168 |
|
| 3 | is [vb pp] an [adj] | 60 |
|
| 4 | it is [vb pp] an | 12 |
|
