| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] often [verb] | 386 |
|
| 2 | it [is] [adv] use | 240 |
|
| 3 | it [is] [adv] use | 203 |
|
| 4 | [pron] [is] often use | 32 |
|
| 5 | it [be] often use | 22 |
|
| 6 | it [is] often use | 17 |
|
