| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it often [verb] that [art] [noun] | 7 |
|
| 2 | it often [verb] that [art] [noun] | 7 |
|
| 3 | it often [verb] that the [noun] | 6 |
|
| 4 | it often [verb] that the [noun] | 6 |
|
| 5 | it often happens that [art] [noun] | 5 |
|
| 6 | it often [verb] that [art] [noun sg] | 5 |
|
| 7 | it often happen that [art] [noun] | 5 |
|
| 8 | it often [vb -s] that [art] [noun] | 5 |
|
