| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] [prep] [art] [noun] | 44241 |
|
| 2 | ahead [prep] [art] [noun] | 890 |
|
| 3 | [to-vb] ahead [prep] [art] | 197 |
|
| 4 | [to-vb] ahead [prep] [noun] | 76 |
|
