| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] go ahead [subord] [verb] [prep] | 5 |
|
| 2 | [modal v] go ahead [subord] [vb pp] [prep] | 5 |
|
| 3 | [modal v] go ahead as [verb] [prep] | 5 |
|
