| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [adv] before | 154 |
|
| 2 | not [adv] before | 153 |
|
| 3 | not long before | 148 |
|
| 4 | not long before | 148 |
|
| 5 | not [adv] before | 111 |
|
| 6 | n't [adv] before | 43 |
|
