| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be keep an [noun sg] on | 32 |
|
| 2 | be keep an [noun] on | 32 |
|
| 3 | be [verb] an eye on | 31 |
|
| 4 | be keep an eye on | 30 |
|
| 5 | be keep [art] eye on | 30 |
|
| 6 | be keep an eye [prep] | 30 |
|
| 7 | [be] keep an eye on | 30 |
|
| 8 | be keep an eye on | 30 |
|
| 9 | be keep an eye [prep] | 30 |
|
| 10 | be keep a eye on | 30 |
|
| 11 | be keep [art] eye on | 30 |
|
