| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | keep an eye [prep] [noun] | 98 |
|
| 2 | [verb] an eye [prep] [n mass] | 9 |
|
| 3 | keep an [noun] [prep] [n mass] | 7 |
|
| 4 | keep an eye [prep] [n mass] | 7 |
|
| 5 | keep [art] eye [prep] [n mass] | 7 |
|
| 6 | keep an [noun sg] [prep] [n mass] | 7 |
|
| 7 | keep [art] eye [prep] [n mass] | 7 |
|
| 8 | keep an eye [prep] [n mass] | 7 |
|
| 9 | keep a eye [prep] [n mass] | 7 |
|
