| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [vb past] to keep an eye on | 6 |
|
| 2 | [pers pn] [vb past] [to-vb] an eye on | 6 |
|
| 3 | [pers pn] [vb past] keep an eye on | 6 |
|
