| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not ask [prep] a | 25 |
|
| 2 | not ask for a | 23 |
|
| 3 | not ask for a | 23 |
|
| 4 | not ask [prep] a | 17 |
|
| 5 | n't ask [prep] a | 13 |
|
| 6 | not ask [prep] a | 12 |
|
