| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is often [adj] [verb] [art] | 76 |
|
| 2 | it is often [adj] [verb] [art] | 64 |
|
| 3 | it is often difficult [verb] [art] | 18 |
|
| 4 | it is often difficult [verb] [art] | 18 |
|
| 5 | it is often possible [verb] [art] | 16 |
|
| 6 | it is often possible [verb] [art] | 16 |
|
| 7 | it is often [adj -er] [verb] [art] | 11 |
|
| 8 | it is often easier [verb] [art] | 9 |
|
| 9 | it is often easy [verb] [art] | 9 |
|
| 10 | it is often necessary [verb] [art] | 5 |
|
| 11 | it is often [verb] [verb] [art] | 5 |
|
| 12 | it is often necessary [verb] [art] | 5 |
|
| 13 | it is often [verb] [conj] [art] | 47 |
|
| 14 | it is often [verb] [that] [art] | 44 |
|
| 15 | it is often [verb] that [art] | 44 |
|
| 16 | it is often [verb] that [art] | 44 |
|
| 17 | it is often [verb] [prep] [art] | 41 |
|
| 18 | it is often [verb] [prep] [art] | 41 |
|
| 19 | it is often [verb] as [art] | 18 |
|
| 20 | it is often [verb] as [art] | 18 |
|
| 21 | it is often [verb] by [art] | 10 |
|
| 22 | it is often [verb] by [art] | 10 |
|
| 23 | it is often [verb] with [art] | 6 |
|
| 24 | it is often [verb] with [art] | 6 |
|
| 25 | it is often [verb] [verb] [art] | 5 |
|
| 26 | it is often [verb] [to-vb] [art] | 5 |
|
