| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [conj] [pron] [is] often [verb] | 21 |
|
| 2 | [noun sg] [conj] [pron] [is] often [verb] | 18 |
|
| 3 | [adv] [conj] [pron] [is] often [verb] | 7 |
|
| 4 | [adv] [conj] [pron] [is] often [verb] | 6 |
|
| 5 | [conj] [pron] [noun] [is] often [verb] | 9 |
|
| 6 | [conj] [pron] [noun sg] [is] often [verb] | 9 |
|
| 7 | [conj] [pron] [is] [adv] often [verb] | 14 |
|
| 8 | [conj] [pron] [is] [adv] often [verb] | 9 |
|
| 9 | [conj] [pron] [is] not often [verb] | 5 |
|
| 10 | [conj] [pron] [is] not often [verb] | 5 |
|
| 11 | [conj] [pron] [is] [not/n't] often [verb] | 5 |
|
| 12 | [conj] [pron] [is] often [adj] [verb] | 60 |
|
| 13 | [conj] [pron] [is] often [adj] [verb] | 49 |
|
| 14 | [conj] [pron] [is] often difficult [verb] | 23 |
|
| 15 | [conj] [pron] [is] often difficult [verb] | 23 |
|
| 16 | [conj] [pron] [is] often [adj -er] [verb] | 10 |
|
| 17 | [conj] [pron] [is] often easy [verb] | 8 |
|
| 18 | [conj] [pron] [is] often easier [verb] | 7 |
|
| 19 | [conj] [pron] [is] often necessary [verb] | 6 |
|
| 20 | [conj] [pron] [is] often necessary [verb] | 6 |
|
| 21 | [conj] [pron] [is] often [adv] [verb] | 5 |
|
| 22 | [conj] [pron] [is] often [verb] [verb] | 5 |
|
| 23 | [conj] [pron] [is] often [vb pp] [verb] | 5 |
|
| 24 | [conj] [pron] [is] often possible [verb] | 5 |
|
| 25 | [conj] [pron] [is] often possible [verb] | 5 |
|
| 26 | [conj] [pron] [is] often [verb] [prep] | 37 |
|
| 27 | [conj] [pron] [is] often [verb] [prep] | 37 |
|
| 28 | [conj] [pron] [is] often [verb] [conj] | 20 |
|
| 29 | [conj] [pron] [is] often [verb] [that] | 16 |
|
| 30 | [conj] [pron] [is] often [verb] that | 16 |
|
