| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] keep an eye on | 13 |
|
| 2 | [prep] keeping a eye on | 12 |
|
| 3 | [prep] keep a eye on | 12 |
|
| 4 | of keep a eye on | 5 |
|
| 5 | of keep a eye on | 5 |
|
