| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] a [noun] | 20644 |
|
| 2 | [verb] a first [noun] | 360 |
|
| 3 | [modal v] [verb] first [noun] | 61 |
|
| 4 | [modal v] [verb] a first | 27 |
|
