| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] keep an eye on | 40 |
|
| 2 | [noun sg] to keep an eye on | 22 |
|
| 3 | [noun sg] [to-vb] an eye on | 22 |
|
| 4 | [noun sg] keeping an eye on | 10 |
|
| 5 | [noun sg] [v-ing] an eye on | 10 |
|
