| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | but if he [verb] n't | 12 |
|
| 2 | but if he do n't | 10 |
|
| 3 | but if he [vb -s] n't | 8 |
|
| 4 | but if he does n't | 6 |
|
