| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | as it is [verb] | 562 |
|
| 2 | it is often [verb] | 364 |
|
| 3 | as it is often | 30 |
|
| 4 | as is often [verb] | 28 |
|
| 5 | as it often [verb] | 12 |
|
