| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh adv] it is [adv] | 292 |
|
| 2 | [Wh adv] it is [adv] | 217 |
|
| 3 | [adv] it is often | 32 |
|
| 4 | [Wh adv] [pron] is often | 9 |
|
| 5 | [Wh adv] it be often | 8 |
|
| 6 | [Wh adv] it [be] often | 8 |
|
| 7 | [Wh adv] it [is] often | 7 |
|
| 8 | [Wh adv] it is often | 6 |
|
