| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] if he [verb] | 903 |
|
| 2 | know if [pron] [verb] | 425 |
|
| 3 | [vb infin] if he [verb] | 233 |
|
| 4 | know [conj] he [verb] | 133 |
|
| 5 | know if he [verb] | 74 |
|
