| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but [not/n't] [adv] | 2447 |
|
| 2 | [not/n't] [adv] so | 593 |
|
| 3 | but [adv] so | 379 |
|
| 4 | but [not/n't] so | 209 |
|
