| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] an [noun] | 41277 |
|
| 2 | [vb base] an [noun] | 4616 |
|
| 3 | keep [art] [noun] | 1034 |
|
| 4 | keep [art] [noun] | 1034 |
|
| 5 | keep an [noun] | 675 |
|
| 6 | keep a [noun] | 341 |
|
