| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [adv] often [verb] | 199 |
|
| 2 | [is] [adv] often [vb pp] | 191 |
|
| 3 | [is] [adv] [adv] assumed | 15 |
|
| 4 | [is] [adv] often assumed | 6 |
|
| 5 | [be] [adv] often assumed | 6 |
|
| 6 | [is] [adv] often assume | 6 |
|
