| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [adj] | 70610 |
|
| 2 | it be [vb pp] | 37805 |
|
| 3 | be [vb pp] [adj] | 15255 |
|
| 4 | it [vb pp] [adj] | 48 |
|
