| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] keep an eye [prep] | 30 |
|
| 2 | [been] keep an [noun] [prep] | 5 |
|
| 3 | [been] [verb] an eye [prep] | 5 |
|
| 4 | [been] keep a eye [prep] | 5 |
|
| 5 | [been] keep [art] eye [prep] | 5 |
|
| 6 | [been] keep an eye [prep] | 5 |
|
| 7 | [been] keep [art] eye [prep] | 5 |
|
