| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] keep an [noun sg] on | 72 |
|
| 2 | [vb mod] keep an eye [prep] | 72 |
|
| 3 | [vb mod] keep [art] eye on | 72 |
|
| 4 | [vb mod] keep an eye on | 72 |
|
| 5 | [vb mod] keep an [noun] on | 72 |
|
| 6 | [vb mod] keep a eye on | 72 |
|
| 7 | [vb mod] [verb] an eye on | 72 |
|
| 8 | [vb mod] keep [art] eye on | 72 |
|
| 9 | [modal v] keep an eye on | 72 |
|
