| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [adj] [verb] [conj] | 735 |
|
| 2 | it is [adv] [adj] [verb] [conj] | 585 |
|
| 3 | it be often [adj] [verb] [conj] | 9 |
|
| 4 | it [be] often [adj] [verb] [conj] | 9 |
|
| 5 | it [is] often [adj] [verb] [conj] | 8 |
|
| 6 | it is often [adj] [verb] [conj] | 7 |
|
| 7 | [pers pn] is often [adj] [verb] [conj] | 7 |
|
| 8 | [pron] is often [adj] [verb] [conj] | 7 |
|
| 9 | it is often [adj] [verb] [conj] | 7 |
|
