| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] know that | 149 |
|
| 2 | [conj] it is [adv] know | 112 |
|
| 3 | [conj] it is [adv] that | 77 |
|
| 4 | [conj] it is know that | 60 |
|
