| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | do not know about | 343 |
|
| 2 | do not know [indef pn] | 269 |
|
| 3 | not know [indef pn] about | 222 |
|
| 4 | do know [indef pn] about | 5 |
|
