| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [adv] [verb] [conj] | 5388 |
|
| 2 | [is] often [verb] [conj] | 288 |
|
| 3 | [is] [adv] often [verb] | 233 |
|
| 4 | [adv] often [verb] [conj] | 129 |
|
| 5 | [is] [adv] often [conj] | 31 |
|
