| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [subord] [is] [adv] [verb] | 20 |
|
| 2 | [adv] often [subord] [is] [adv] | 6 |
|
| 3 | often [subord] [is] [adv] [verb] | 5 |
|
