| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adv] [verb] [that] [adj] | 100 |
|
| 2 | it [is] often [verb] [that] [adj] | 28 |
|
| 3 | it [is] often [verb] [conj] [adj] | 14 |
|
| 4 | it [be] often [verb] [that] [adj] | 12 |
|
| 5 | [pron] [is] often [verb] [that] [adj] | 11 |
|
| 6 | it [is] often [verb] [that] [adj] | 11 |
|
| 7 | [pers pn] [is] often [verb] [that] [adj] | 11 |
|
