| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] often [verb] that the | 42 |
|
| 2 | it be often [verb] that the | 42 |
|
| 3 | it [is] often [verb] that the | 38 |
|
| 4 | it is often [verb] that the | 37 |
|
| 5 | it often [verb] that the [adj] | 6 |
|
| 6 | it often [verb] that the [noun] | 6 |
|
