| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if [adv] [verb] | 1017 |
|
| 2 | if [adv] [vb pp] | 561 |
|
| 3 | [conj] [adv] required | 63 |
|
| 4 | if [adv] require | 20 |
|
