| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] often [vb pp] [is] [conj] | 5 |
|
| 2 | be often [vb pp] [is] [conj] | 5 |
|
| 3 | is often [vb pp] [is] [conj] | 5 |
|
| 4 | [be] often [vb pp] [is] [conj] | 5 |
|
