| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not go ahead | 72 |
|
| 2 | not go ahead | 58 |
|
| 3 | not to go ahead | 23 |
|
| 4 | n't go ahead | 15 |
|
| 5 | not going ahead | 5 |
|
