| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] to keep an eye on [noun] | 5 |
|
| 2 | [verb] to keep an eye on [noun prp] | 5 |
|
| 3 | [verb] to keep an eye on [noun pl] | 5 |
|
| 4 | have to keep an eye on [noun] | 5 |
|
