| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] keep an eye | 83 |
|
| 2 | [noun pl] [verb] an eye | 25 |
|
| 3 | [noun pl] keep an [noun] | 20 |
|
| 4 | [noun pl] keep an [noun sg] | 19 |
|
| 5 | [noun pl] keep [art] eye | 17 |
|
| 6 | [noun pl] keep a eye | 17 |
|
| 7 | [noun pl] keep [art] eye | 17 |
|
| 8 | [noun pl] keep an eye | 17 |
|
