| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if do [not/n't] [vb infin] | 9 |
|
| 2 | if do [not/n't] [verb] | 9 |
|
| 3 | if do n't [verb] | 7 |
|
| 4 | if do [not/n't] [verb] | 5 |
|
