| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] keep an eye [prep] | 70 |
|
| 2 | [vb mod] keep an eye [prep] | 70 |
|
| 3 | can keep an [noun] [prep] | 24 |
|
| 4 | can keep an [noun sg] [prep] | 24 |
|
| 5 | can keep a eye [prep] | 23 |
|
| 6 | can keep an eye [prep] | 23 |
|
| 7 | can [verb] an eye [prep] | 23 |
|
| 8 | can keep [art] eye [prep] | 23 |
|
| 9 | can keep an eye [prep] | 23 |
|
| 10 | can [vb infin] an eye [prep] | 23 |
|
| 11 | can keep [art] eye [prep] | 23 |
|
| 12 | can keep an eye [prep] | 23 |
|
