| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] not understand [Wh adv] | 125 |
|
| 2 | not understand [Wh adv] [noun prp] | 18 |
|
| 3 | [modal v] understand [Wh adv] [noun prp] | 13 |
|
| 4 | [modal v] not understand [noun prp] | 8 |
|
