| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] it is [adv] | 324 |
|
| 2 | [prep] it is [adv] | 223 |
|
| 3 | [prep] [pron] is often | 49 |
|
| 4 | [prep] it be often | 5 |
|
| 5 | [prep] it is often | 5 |
|
| 6 | [prep] it [is] often | 5 |
|
| 7 | [prep] it is often | 5 |
|
| 8 | [prep] it [be] often | 5 |
|
