| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if [pron] [modal v] [verb] a | 887 |
|
| 2 | [vb base] if [pron] [modal v] [verb] | 746 |
|
| 3 | [vb base] [pron] [modal v] [verb] a | 643 |
|
| 4 | [vb base] if [pron] [verb] a | 94 |
|
