| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] what i do [not/n't] understand | 6 |
|
| 2 | [is] [Wh det] i do n't understand | 6 |
|
| 3 | [is] [Wh det] i do [not/n't] understand | 5 |
|
| 4 | 's [Wh det] i do [not/n't] understand | 5 |
|
