| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [adv] often [verb] [conj] | 11 |
|
| 2 | it [be] [adv] often [vb pp] [conj] | 11 |
|
| 3 | it is [adv] often [verb] [conj] | 10 |
|
| 4 | it [is] [adv] often [verb] [conj] | 10 |
|
| 5 | it [be] [adv] often [verb] [conj] | 8 |
|
| 6 | it [be] [adv] often [verb] [subord] | 5 |
|
| 7 | it [be] [adv] often [verb] that | 5 |
|
| 8 | it [be] [adv] often [verb] that | 5 |
|
| 9 | it [be] [adv] often [verb] [that] | 5 |
|
