| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but it is [adv] [verb] | 265 |
|
| 2 | but it is [adv] [verb] | 200 |
|
| 3 | [conj] it is often [verb] | 75 |
|
| 4 | [coord] it is often [verb] | 27 |
|
| 5 | but it [be] often [verb] | 14 |
|
| 6 | but it be often [verb] | 14 |
|
| 7 | but it [is] often [verb] | 12 |
|
| 8 | but [pron] is often [verb] | 11 |
|
| 9 | but it is often [verb] | 10 |
|
| 10 | but it is often [verb] | 10 |
|
