| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] if [pron] do [adv] [verb] | 157 |
|
| 2 | [prep] if [pron] do [adv] [vb infin] | 156 |
|
| 3 | [prep] [conj] [pron] do [adv] know | 52 |
|
| 4 | [prep] if [pron] [verb] [adv] know | 37 |
|
| 5 | [prep] if [pron] do [adv] know | 37 |
|
