| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is often [verb] [conj] | 283 |
|
| 2 | is often [vb pp] [conj] | 280 |
|
| 3 | is [adv] assumed [conj] | 116 |
|
| 4 | [be] often assumed [conj] | 27 |
|
| 5 | be often assumed [conj] | 27 |
|
| 6 | [is] often assumed [conj] | 25 |
|
| 7 | is often assume [conj] | 25 |
|
