| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it 's [adv] but | 16 |
|
| 2 | it 's [adv] but | 10 |
|
| 3 | it 's not but | 6 |
|
| 4 | it 's not but | 6 |
|
| 5 | it 's [not/n't] but | 6 |
|
