| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] often [verb] [that] | 154 |
|
| 2 | it [is] [verb] [that] [subord] | 93 |
|
| 3 | it [is] often [verb] [subord] | 12 |
|
| 4 | [is] often [verb] [that] [subord] | 8 |
|
