| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [vb pp] that [art] | 1374 |
|
| 2 | it is often [vb pp] that | 150 |
|
| 3 | is often [vb pp] that [art] | 47 |
|
| 4 | it is often [vb pp] [art] | 8 |
|
