| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be not [adv] [conj] | 617 |
|
| 2 | be [adv] often [conj] | 34 |
|
| 3 | be not [adv] often | 25 |
|
| 4 | be not often [conj] | 16 |
|
| 5 | not [adv] often [conj] | 16 |
|
