| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to keep an [noun sg] on [art] [noun] | 25 |
|
| 2 | to keep an eye on [art] [noun] | 25 |
|
| 3 | to keep an [noun] on the [noun] | 25 |
|
| 4 | to keep an eye on [art] [noun] | 25 |
|
| 5 | to keep an [noun] on [art] [noun sg] | 19 |
|
| 6 | to keep an [noun] on [art] [noun pl] | 5 |
|
