| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] keep an eye | 18 |
|
| 2 | of [verb] an eye | 10 |
|
| 3 | of keep an [noun] | 8 |
|
| 4 | of keep an [noun sg] | 8 |
|
| 5 | of keep [art] eye | 7 |
|
| 6 | of keep an eye | 7 |
|
| 7 | of keep a eye | 7 |
|
| 8 | of keep [art] eye | 7 |
|
