| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] [prep] a [adj] [noun] | 5338 |
|
| 2 | [to-vb] [prep] [art] first [noun] | 253 |
|
| 3 | [verb] [prep] a first [noun] | 109 |
|
| 4 | [to-vb] [prep] a first [noun] | 6 |
|
