| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [vb pp] that | 50 |
|
| 2 | it is generally [vb pp] [det] | 14 |
|
| 3 | it is [adv] accepted [det] | 10 |
|
| 4 | it is widely [vb pp] [det] | 7 |
|
| 5 | it is well [vb pp] [det] | 6 |
|
| 6 | it is [adv] agreed [det] | 5 |
|
| 7 | it is [adv] established [det] | 5 |
|
| 8 | it is now [vb pp] [det] | 5 |
|
