| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it is [adv] | 4193 |
|
| 2 | it is [adv] often | 113 |
|
| 3 | [subord] it is often | 74 |
|
| 4 | [subord] is [adv] often | 33 |
|
| 5 | [subord] it [adv] often | 9 |
|
