| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] to keep an eye on | 55 |
|
| 2 | have [verb] an eye on | 17 |
|
| 3 | have keep an eye on | 17 |
|
| 4 | have to keep an eye on | 13 |
|
| 5 | have to keep an eye on | 13 |
|
| 6 | have to keep a eye on | 13 |
|
| 7 | have to keep [art] eye on | 13 |
|
| 8 | have [to-vb] an eye on | 13 |
|
| 9 | have to keep an eye [prep] | 13 |
|
| 10 | have to keep [art] eye on | 13 |
|
| 11 | have to keep an [noun sg] on | 13 |
|
| 12 | have to keep an [noun] on | 13 |
|
| 13 | have to keep an eye [prep] | 13 |
|
