| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | if [pron] [vb past] [verb] [det] | 309 |
|
| 2 | [conj] [pron] [vb past] know [det] | 48 |
|
| 3 | if [pron] [verb] know [det] | 21 |
|
| 4 | if [pron] [vb past] know [adj] | 17 |
|
