| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | keep a [adv] [adj] eye [prep] | 7 |
|
| 2 | keep [art] [adv] [adj] eye on | 7 |
|
| 3 | keep [art] [adv] [adj] eye [prep] | 7 |
|
| 4 | keep a [adv] [adj] eye [prep] | 6 |
|
