| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i do [not/n't] know [indef pn] | 185 |
|
| 2 | i do not know [indef pn] | 185 |
|
| 3 | i do [adv] know [indef pn] | 185 |
|
| 4 | i do n't know [indef pn] | 181 |
|
