| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [adv] [vb pp] | 509 |
|
| 2 | [pron] is [adv] often [vb pp] | 60 |
|
| 3 | it is [adv] often [vb pp] | 38 |
|
| 4 | it [be] [adv] often [vb pp] | 37 |
|
| 5 | it be [adv] often [vb pp] | 37 |
|
| 6 | it [is] [adv] often [vb pp] | 35 |
|
| 7 | [pers pn] is [adv] often [vb pp] | 34 |
|
| 8 | it is [adv] often [verb] | 32 |
|
| 9 | it is [adv] often [vb pp] | 32 |
|
