| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] a eye | 94 |
|
| 2 | [adv] keep a eye | 68 |
|
| 3 | [adv] keep a [noun] | 63 |
|
| 4 | [adv] keep a [noun sg] | 63 |
|
| 5 | [adv] [vb infin] a eye | 23 |
|
| 6 | [adv] keep [art] eye | 18 |
|
| 7 | [adv] keep a eye | 17 |
|
