| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to keep an [noun sg] [prep] [art] | 32 |
|
| 2 | to keep an [noun sg] [prep] the | 31 |
|
| 3 | to keep an eye [prep] [art] | 29 |
|
| 4 | to keep an [noun sg] on [art] | 29 |
|
| 5 | to keep an [noun sg] on [art] | 29 |
|
