| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but it be often [verb] | 14 |
|
| 2 | but it [be] often [verb] | 14 |
|
| 3 | but it [is] often [verb] | 12 |
|
| 4 | but it is often [verb] | 10 |
|
| 5 | but it often [verb] [art] | 5 |
|
| 6 | but it often [verb] [art] | 5 |
|
