| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [vb pp] that if | 13 |
|
| 2 | it is often [vb pp] that [subord] | 7 |
|
| 3 | it is sometimes [vb pp] that [subord] | 6 |
|
| 4 | it is [adv] [vb pp] that when | 6 |
|
| 5 | it is well [vb pp] that [subord] | 6 |
|
| 6 | it is [adv] assumed that [subord] | 5 |
|
| 7 | it is [adv] argued that [subord] | 5 |
|
| 8 | it is [adv] said that [subord] | 5 |
|
| 9 | it is [adv] known that [subord] | 5 |
|
