| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [prep] keep an eye on | 6 |
|
| 2 | [noun sg] [prep] keep a eye on | 6 |
|
| 3 | [noun sg] [prep] keeping a eye on | 6 |
|
| 4 | [noun sg] of keep a eye on | 5 |
|
| 5 | [noun sg] of keep a eye on | 5 |
|
