| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] [adv] but [adv] | 54 |
|
| 2 | not [adv] but [adv] | 51 |
|
| 3 | [not/n't] once but [adv] | 13 |
|
| 4 | [not/n't] once but [adv] | 13 |
|
| 5 | [not/n't] [adv] but twice | 11 |
|
