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