| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if [pron] [modal v] [verb] a | 887 |
|
| 2 | [pron] [modal v] [verb] for a | 532 |
|
| 3 | if [pron] [verb] for a | 96 |
|
| 4 | if [pron] [modal v] [verb] for | 79 |
|
