| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] be [adv] before | 75 |
|
| 2 | [adv] be [adv] before | 75 |
|
| 3 | not be [adv] before | 75 |
|
| 4 | [adv] be long before | 75 |
|
| 5 | [not/n't] be [adv] before | 75 |
|
| 6 | not be [adv] before | 40 |
|
| 7 | n't be [adv] before | 35 |
|
