| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] if [pron] [verb] | 7398 |
|
| 2 | [vb infin] if [pron] [verb] | 2204 |
|
| 3 | know [conj] [pron] [verb] | 1102 |
|
| 4 | know if [pron] [verb] | 694 |
|
