| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] often | 113 |
|
| 2 | it is [adv] often | 79 |
|
| 3 | it is [not/n't] often | 34 |
|
| 4 | it is not often | 34 |
|
| 5 | it is not often | 27 |
|
| 6 | it is more often | 16 |
|
| 7 | it is more often | 16 |
|
| 8 | it is so often | 12 |
|
| 9 | it is so often | 12 |
|
| 10 | it is also often | 10 |
|
| 11 | it is also often | 10 |
|
| 12 | it is very often | 9 |
|
| 13 | it is most often | 9 |
|
| 14 | it is very often | 9 |
|
| 15 | it is most often | 9 |
|
| 16 | it is n't often | 7 |
|
| 17 | it is quite often | 5 |
|
| 18 | it is quite often | 5 |
|
| 19 | [conj] it is often | 213 |
|
| 20 | [noun] it is often | 89 |
|
| 21 | [coord] it is often | 87 |
|
| 22 | [subord] it is often | 74 |
|
| 23 | [noun sg] it is often | 65 |
|
| 24 | and it is often | 61 |
|
| 25 | and it is often | 61 |
|
| 26 | that it is often | 52 |
|
| 27 | that it is often | 52 |
|
| 28 | [that] it is often | 52 |
|
| 29 | [adv] it is often | 32 |
|
| 30 | as it is often | 30 |
|
