| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | do not know | 2708 |
|
| 2 | [vb base] not know | 1264 |
|
| 3 | do not know | 1264 |
|
| 4 | did not know | 1215 |
|
| 5 | [vb past] not know | 1215 |
|
| 6 | does not know | 228 |
|
| 7 | [vb -s] not know | 228 |
|
