| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [verb] that [noun prp] | 48 |
|
| 2 | it is [adv] [vb pp] that [noun prp] | 46 |
|
| 3 | it is [adv] said that [noun prp] | 9 |
|
| 4 | it is [adv] say that [noun prp] | 9 |
|
| 5 | it is often [verb] that [noun prp] | 8 |
|
| 6 | it is widely [verb] that [noun prp] | 7 |
|
| 7 | it is [adv] known that [noun prp] | 7 |
|
| 8 | it is well [verb] that [noun prp] | 7 |
|
| 9 | it is [adv] know that [noun prp] | 7 |
|
