| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [vb pp] that | 1169 |
|
| 2 | [subord] it is [adv] [vb pp] | 609 |
|
| 3 | [subord] it is [vb pp] that | 496 |
|
| 4 | [subord] it is [adv] that | 15 |
|
