| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adj] [verb] | 17311 |
|
| 2 | it [is] often [verb] | 386 |
|
| 3 | it [is] often [adj] | 355 |
|
| 4 | [is] often [adj] [verb] | 286 |
|
