| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] often [verb] | 38 |
|
| 2 | it is [adv] often [verb] | 32 |
|
| 3 | it is so [adv] [verb] | 27 |
|
| 4 | it is so [adv] [verb] | 27 |
|
| 5 | [pron] is so often [verb] | 16 |
|
| 6 | it [be] so often [verb] | 7 |
|
| 7 | it [is] so often [verb] | 7 |
|
| 8 | it be so often [verb] | 7 |
|
| 9 | it is so often [verb] | 6 |
|
| 10 | it is so often [verb] | 6 |
|
