| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adv] [verb] [subord] | 214 |
|
| 2 | it [is] often [verb] [conj] | 168 |
|
| 3 | it [is] [adv] [verb] [subord] | 104 |
|
| 4 | [pron] [is] often [verb] [subord] | 22 |
|
| 5 | [pers pn] [is] often [verb] [subord] | 15 |
|
| 6 | it [be] often [verb] [subord] | 14 |
|
| 7 | it [is] often [verb] [subord] | 12 |
|
| 8 | it [is] often [verb] [subord] | 12 |
|
