| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | cos i do not know what | 15 |
|
| 2 | cos i do [adv] know what | 15 |
|
| 3 | cos i do n't know what | 15 |
|
| 4 | cos i do [not/n't] know what | 15 |
|
| 5 | cos i do [adv] know what | 15 |
|
| 6 | cos i do [adv] know what | 12 |
|
