| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [verb] an eye | 28 |
|
| 2 | [prep] keep an [noun sg] | 24 |
|
| 3 | [prep] keep an [noun] | 24 |
|
| 4 | [prep] keep a eye | 18 |
|
| 5 | [prep] keep [art] eye | 18 |
|
| 6 | [prep] keep an eye | 18 |
|
| 7 | [prep] keep [art] eye | 18 |
|
