| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [verb] that | 1289 |
|
| 2 | it is often [verb] that | 150 |
|
| 3 | it is [adv] often [verb] | 38 |
|
| 4 | it is [adv] often that | 15 |
|
| 5 | is [adv] often [verb] that | 5 |
|
