| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | keep a [noun] | 1889 |
|
| 2 | keep a [noun sg] | 1862 |
|
| 3 | [verb] a eye | 766 |
|
| 4 | keep [art] eye | 583 |
|
| 5 | keep a eye | 581 |
|
