| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] it is [adv] [verb] | 547 |
|
| 2 | [coord] it is [adv] [verb] | 426 |
|
| 3 | [conj] it is often [verb] | 75 |
|
| 4 | [coord] it be often [verb] | 35 |
|
| 5 | [coord] it [be] often [verb] | 35 |
|
| 6 | [coord] [pron] is often [verb] | 32 |
|
| 7 | [coord] it [is] often [verb] | 31 |
|
| 8 | [coord] it is often [verb] | 27 |
|
