| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [vb pp] to [art] | 213 |
|
| 2 | [subord] it is [vb pp] to | 213 |
|
| 3 | [subord] it is [vb pp] [art] | 37 |
|
| 4 | [subord] it is to [art] | 21 |
|
