| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [vb pp] that [ex0] | 32 |
|
| 2 | it is [adv] [vb pp] that [ex0] | 31 |
|
| 3 | it is often [vb pp] that [pron] | 22 |
|
| 4 | it is often [verb] that [ex0] | 6 |
|
| 5 | it is often [vb pp] that [ex0] | 6 |
|
| 6 | it is often [vb pp] [conj] [ex0] | 6 |
|
| 7 | it be often [vb pp] that [ex0] | 6 |
|
| 8 | it is often [vb pp] that [ex0] | 6 |
|
| 9 | [pron] is often [vb pp] that [ex0] | 6 |
|
| 10 | it is often [vb pp] [that] [ex0] | 6 |
|
| 11 | it [be] often [vb pp] that [ex0] | 6 |
|
| 12 | it [is] often [vb pp] that [ex0] | 6 |
|
