| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] know that | 147 |
|
| 2 | [subord] it is [adv] know | 43 |
|
| 3 | [subord] it is know that | 36 |
|
| 4 | [subord] it is [adv] that | 15 |
|
