| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] an eye [prep] [adj] | 54 |
|
| 2 | keep an [noun sg] [prep] [adj] | 42 |
|
| 3 | keep an [noun] [prep] [adj] | 42 |
|
| 4 | keep a eye [prep] [adj] | 39 |
|
| 5 | keep [art] eye [prep] [adj] | 39 |
|
| 6 | keep [art] eye [prep] [adj] | 39 |
|
| 7 | keep an eye [prep] [adj] | 39 |
|
