| No | Pattern | Freq | Relations |
|---|---|---|---|
| 31 | [prep] it is often | 5 |
|
| 32 | it is [adv] often | 113 |
|
| 33 | it is [adv] often | 79 |
|
| 34 | it is [not/n't] often | 34 |
|
| 35 | it is not often | 34 |
|
| 36 | it is not often | 27 |
|
| 37 | it is more often | 16 |
|
| 38 | it is more often | 16 |
|
| 39 | it is so often | 12 |
|
| 40 | it is so often | 12 |
|
| 41 | it is also often | 10 |
|
| 42 | it is also often | 10 |
|
| 43 | it is very often | 9 |
|
| 44 | it is most often | 9 |
|
| 45 | it is very often | 9 |
|
| 46 | it is most often | 9 |
|
| 47 | it is n't often | 7 |
|
| 48 | it is quite often | 5 |
|
| 49 | it is quite often | 5 |
|
| 50 | it is often [verb] | 364 |
|
| 51 | it is often [vb pp] | 362 |
|
| 52 | it is often [adj] | 322 |
|
| 53 | it is often [adj] | 275 |
|
| 54 | it is often [art] | 124 |
|
| 55 | it is often [art] | 124 |
|
| 56 | it is often [adv] | 103 |
|
| 57 | it is often the | 85 |
|
| 58 | it is often the | 85 |
|
| 59 | it is often [adv] | 78 |
|
| 60 | it is often difficult | 69 |
|
