| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] it [is] [adv] [verb] | 870 |
|
| 2 | [conj] it [is] often [verb] | 82 |
|
| 3 | [coord] [pron] [is] often [verb] | 36 |
|
| 4 | [coord] it [be] often [verb] | 35 |
|
