| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | did [pron] [verb] | 16806 |
|
| 2 | [verb] [pron] know | 10438 |
|
| 3 | do [pron] know | 5112 |
|
| 4 | [vb past] [pron] know | 1887 |
|
